In the Shanghai Tower scene, the terrorist/sniper is seen operating a manual, bolt action rifle. Right after during the fight with James Bond, the gun is shot several times just as if it was a semi-automatic weapon.
When in Shanghai, Bond is seen removing his gloves (particularly the right one) to use his gun. When hanging on to the lift he is seen without any gloves. Then when Patrice is hanging down from the building, 007 holds him with his right hand in the glove, which should be off (like in the previous shots)
When Bond rams his bike into the fence to get on the train where he fights Patrice, the bike can be seen flipping and lands on the track to the right of the moving train. In the second shot after, filmed from the opposite angle, the bike is not standing where it supposedly landed.
When M is first debriefed by Gareth Mallory, she enters carrying a handbag, which she places on the floor beside her. The meeting ends abruptly and she leaves, and is not carrying her handbag, but she is not seen picking it up.
When M is testifying to the ministers at parliamentary hearing, near the beginning of the scene, her wrist watch shows the time at 3:00. After about 5-10 minutes of dialogue, Silva approaching and Bond running down Whitehall, when they show M again reading poetry, her wrist watch shows the time at 3:55.
When bond is sitting on his own in the beach bar, he throws cash over the bar and takes a bottle of booze, pours himself a half glass then hears the report about the attack on MI6. In the next shot, the glass is empty though Bond doesn't touch the glass after he pours the drink.
In the scene where Bond is chasing Silva in the Underground, he leaps over the emergency buttons and slides down the escalator panel. Initially you can see the emergency buttons at the bottom of the escalator, which would have broken his slide, however, these "disappear" as Bond slides smoothly off the panel at the bottom.
When Silva challenges Bond on Silva's island to shoot a glass off of Sévérine's head, one of Silva's henchmen points a gun to Bond's head. As camera angles changes, the position of the gun moves from shot to shot from being directly pressed against Bond's left temple, to a few inches away, to pointing more towards his cheek.
Before Patrice enters the elevator in Shanghai, the button for his floor is already lit. After he motions to press the floor button, it is no longer lit. Later, as the elevator is moving up, the button is lit again.
On the sailing yacht Bond puts the radio device in the right side pocket of his trousers, but when he shows it to Silva he must have taken it from the left pocket because his right hand is holding a gun.
When Bond is in M's flat, he puts down a bottle of Macallan whisky. When he is seen again, the bottle has been turned round, displaying the front label. In the next shot, the bottle is back to as it was.
At the Shanghai Casino, Bond puts the very expensive chip on the bench between him and the cashier, who doesn't touch it, but leaves it behind as she gets her boss and the suitcase that holds a lot of money. As Bond walks away, it is gone.
When Bond is on the train, before he gets into the backhoe, the number of people and cars on the street keep changing. Even if the train moved forward, the people/cars seen in the next shot weren't seen in the previous shots.
When Silva gets out of the helicopter at Skyfall, the sky is approaching dark (7 o'clock to 8 o'clock sky). After throwing the grenades in the house and Silva says "Everyone listen to me! Don't you dare touch her, she's mine!" about 50 seconds later, it is suddenly pitch black (11 o'clock to midnight sky).
When M and Tanner are driving back to MI6, they are stopped. A policeman walks up to the car. He is about a foot away from the car at the end of the shot, but the policeman is several meters away when M steps out of the car.
When Bond runs out of the London Underground Station, he is covered in dust. The dust is still there when he runs into the Houses of Parliament and still there when he drives off with M. Yet the dust has disappeared when Bond and M find the Aston Martin. There was no time to clean up the dust since he was driving.
When Silva's henchmen arrive at Skyfall, the Aston Martin is visible on the left side of the wall around the house. When Silva commands the Aston Martin to be shot at later, it has moved to the right side of the wall around the house without any time to move it.
When Bond returns to MI6, when Bond stops exercising and Tanner leaves the room, Bond has both his arms against the weights. In the next shot, one of his arms is against the weights whilst his other shoulder is now against the other side of the weights.
In the museum, Bond is sitting down and Q sits next to him. Note part of Bond's coat goes over the edge of the seat. Where in the next shot, that part of the coat over the edge is now back on the seat.
Whilst Bond and Eve are chasing Patrice in the jeep, Eve smashes one of the wing mirrors and she then says, "Wasn't using that one either". After this line, the expression on her face changes between cuts.
In a hotel room at the start, Bond finds Ronson bleeding. Note the amount of blood on his chin coming from his mouth. In the shot where Bond opens Ronsons's jacket partway to see the blood, there are a bit of dripping blood going down his chin. In the shot where Bond leaves the room, there is suddenly a huge blob of blood on the left side of the Ronson's lips that wasn't there before.
When Bond has begun searching the train for the villain, a blonde passenger's face is clearly shown on the right hand side of the screen. About a minute later, the same extra is waiting to board the same train at the next station.
Just after Bond has lost track of Silva in the London Underground station, the scene cuts to M's parliament meeting. At this time, the time on M's watch reads 3:00. Yet when Bond catches up with Silva in the basement of the London Underground station, the time on Bond's watch reads 4:55. Far too long to have passed given the events seen and distances travelled.
In the courtroom shoot out scene, Bond shoots two fire extinguishers to use as a smokescreen. If you watch Eve as he steps out, she lowers her weapon dramatically at the last second. When the camera cuts to her immediately after, her gun is raised again.
In the scene in the National Gallery early on in the film where Bond meets Q, there is a line of bench seats. Bond is sitting on the end of one benches looking at a painting. The shot is from behind. Q comes and sits on the adjacent bench next to Bond. You can see the gap between the two benches between the pair. Then the shot changes to a front view as they start talking. But suddenly there is no gap in the bench in between them, they are both sitting on the same bench, the gap is now to Bond's left.
When Bond drives his motorbike into the bridge, the scene changes to Bond landing on the train, the bike magically landing on its wheels upright, then when the scene changes again, the bike has disappeared, yet the bike should be seen rolling out of control.
When Bond is drinking Macallan in M's apartment he set the bottle down with the label facing away from us. Next shot has the bottle facing towards us. Final shot and the bottle is back in its original position, with the label away from us again.
When M goes to see Mallory at the start of the film, he pours her a drink and places the bottle on the table with the label facing the camera. The label is off centre and more to the left - when M leaves the bottle has not been moved and the label is still facing the camera, but the label is now more to the right.
As Bond chases Patrice over the rooftops of the Grand Bazaar in Istanbul at the start of the film, in the close ups of Daniel Craig his tie can be seen noticeably flapping over his shoulder (as you would expect). But in the long shots with the stuntman it doesn't move about at all, presumably having been fixed in place for safety.
When Bond confronts the assassin and lets him fall to his death from the building in Shanghai, he then looks over to the opposite window where Severine is standing in the smashed window hole, her hair blowing in the breeze. When it cuts to the closeup of her leaving you can see the light reflected in the window glass that has magically reappeared.
In the scene where M (Judi Dench) is been driven back to the MI6 building, her car is stopped on a bridge and you see two cars stopping behind M's vehicle while she is still inside. She then gets out of the vehicle to speak to a police officer who requested that the car stop, and now two different vehicles are behind.
When Severine is first seen on the deck of the yacht, she is standing forward of two rather large winches. James walks up and stands beside her. In the next shot after the conversation, they are both standing just aft of those winches.
In the first chase sequence before Patrice rides on top of the Grand Bazaar in Istanbul there is a sign beside the stairs that says "PANTOLON" with a piece of paper on the first "O". In the next two shots it was missing.
(at around 1h 9 mins) While Bond, Severine and 6 "Thugs" are walking towards the evil villain's island hideout. All the villains shoes are well scuffed and /or muddied on the uppers, but all shoes including Bond's are brand new on the soles without any wear and do not even have any or only little signs of picking up any of the usual darkening dirt that shoes would usually accumulate over a short period of time and are entirely inconsistent with the wear on the uppers.
Bond rescues M and drives from Westminster to within sight of Canary wharf, a distance of less than six miles. However, in that distance the film goes from full daylight to full darkness of night-time.
During one of the beginning scenes, after Bond crashes his bike into a bridge wall and lands on top of a moving train, he almost slips off, but we see in a scene of the train moving away from the bridge that there is a platform which was supporting him as he was climbing back up onto the roof.
In the Shanghai hotel, Patrice goes into a lift and Bond jumps onto the side of it. Whilst the lift is rising, Patrice looks outside of the lift. The shot cuts to an exterior shot of the lift. When it cuts to the exterior shot, for just the first few frames a camera can be seen attached to the lift, used to film the shots of Bond.
After Patrice jumps onto the train, Bond drives off the bridge and lands on the train and begins to fall over the side, then climbs back on. Eve then says "They're on the train." During this shot, you can see the white platform Bond was standing on to climb back onto the train.
The opening chase scene is shot at two different provinces of Turkey, namely Adana and Istanbul, approximately 950 km apart. It is not possible to see yellow cabs with license plate numbers starting with '01' (signifying 'Adana') near the Grand Bazaar (in Istanbul).
When leaving the hearing after the shooting, M's assistant Tanner has M get in the back on the right side, then walks around to the left side to drive. But in England, the driver seat is on the right side, not the left.
The suggestion is that the building the Ministerial Hearing is being held in is in Westminster, in one of the Ministerial buildings off of Whitehall, however the building 'Silva' enters seems to be Trinity House on Trinity Square, close to Tower Hill and the Tower of London, several miles away, with Bond and others exiting the building after the shootout onto Seething Lane Garden.
When you see Bond's parents' grave in the chapel cemetery near Skyfall, his mother is named as Monique Delacroix Bond. As Skyfall is supposed to be in Scotland, only her maiden name would appear on her gravestone as that is the tradition in Scotland. Her gravestone should read "Monique Delacroix".
The scene when Bond and M are driving away in the Aston Martin they are seen driving through New Cross, the next scene is them driving on the A2 in Greenwich/Charlton which with the wharf in the background. This would lead in the direction of new cross.
Both Silva and Bond slide down the center escalator divider in the chase in the tube station. This would not be possible since, on the London Underground, there are protruding metal discs at regular intervals to prevent exactly this behavior.
In the intro scene when James Bond's train car is uncoupled, the car's brake pipe is disconnected as well. Train brakes work on positive pressure, so if the brake pipe were disconnected, the uncoupled cars would immediately stop within a short distance, and the rest of the train would shortly follow. In the movie, the uncoupled cars continue closely following the train as if nothing had happened.
Silva says that after he bit the capsule with hydrogen cyanide it "burnt his insides" but he "didn't die" because "life clung to him", and then shows the "effects of hydrogen cyanide". All of those statements are goofs. It's impossible for life to cling to anyone who ingests this chemical and he or she invariably dies within 1 to 10 minutes. The chemical doesn't "burn the insides"; it causes oxygen deprivation and death. It also doesn't cause any of the deformities shown by Silva.
Upon removing a dental prosthetic on his upper jaw, Silva reveals many of his teeth and part of his cheek were destroyed by "hydrogen cyanide". However, this type of cyanide has never been used in suicide capsules and is no more acidic than lemon juice.
The tube train used during the London Underground chase scene is a deep-level train of the Jubliee line, as shown by the colour of the bars inside and the layout of the interior. However, the chase supposedly occurs on the District line, as proved by its final destination being Wimbledon. The District line in fact uses considerably larger and very different sub-surface rolling stock. The sequence was likely filmed using the disused Jubilee line platforms at Charing Cross station, which are maintained for the sole purpose of providing film productions with a location to shoot on the London Underground without disrupting the rest of the system.
When M is reading Bond's obituary, he is referred to as 'Commander James Bond C.M.G. R.N.'. A Royal Naval officer's rank is always either written in full ('Commander James Bond CMG Royal Navy') or fully abbreviated ('Cdr James Bond CMG RN').
On Skyfall's frozen pond, Bond shoots his way through the ice in order to bring himself and Silva's henchman underwater in order to suffocate him. Bond and the invader struggle underwater where Bond chokes the man to death, although both men are already underwater and cannot breath anyway.
When the explosion that takes down the Merlin helicopter occurs the camera cuts briefly to inside the cockpit. No1 and No2 engine condition switches are set to ground idle. No3 engine is set to off. The rotor brake is in the "on" position. An aircraft in this configuration would not even have rotors turning, let alone fly around.
All three engines should be in "flight" condition with the rotor brake "off".
When Bond is chasing Silva on the Underground, Q tells Bond that it's "rush hour". However, when Silva causes the explosion which consequently causes a tube train to crash just a few minutes later, the train is empty.
When Patrice is going up the elevator in Shanghai, there is a shot of him taking the suppressor off his pistol. But once it's off you can see that the pistol barrel isn't threaded, which means that it couldn't take a suppressor in the first place.
During Bond's fight with Patrice in the Shanghai high-rise, Patrice's sniper rifle fires several times, presumably by accident. However, moments earlier, when Patrice assassinates his target in the neighboring building, the rifle is shown to be bolt-action. A bolt-action rifle can't be fired more than once without manually re-cocking the gun in order to fire the next round.
In Turkey the first two numbers of a vehicle license plate belong to a city. Number 34, for example, is for Istanbul. The motorcycle chase in the beginning of the movie takes part in Istanbul (both the Land Rover and the Audi have "34" plates). However, once they come to the bridge where Bond jumps to the train, all the vehicles on the bridge (except the Land Rover) have plates starting with "01", which is the license plate number for the city of Adana, where those scenes were shot.
It would be impossible to drive a silver Aston Martin DB5 from London to Scotland without getting splash marks on the side of the vehicle. Especially in view of the fact that the road conditions are wet by the time 007 and M reach the Scottish Highlands, but the car still looks immaculate.
When Bond climbs up from under lift/elevator after hanging under the assassin's lift car he opens adjacent lift/elevator landing doors just by pulling them apart. This is not possible without first disengaging the door lock mechanism, which is operated when car is at that level. If this were possible anyone could push lift/elevator doors open from any level and fall down the shaft.
In the very beginning of the film the Audi A5 is chased by the Landrover. At a point the Audi makes a right hand handbrake turn, which is impossible since the Audi has an electronic handbrake, not a manual one.
The Ambulances used in the film in the "M" attack in London are incorrect, as they are not the current vehicles used by London ambulance service. They all now have the patient lifts on the rear. Various vehicle tax discs were out of date too.
When Bond is chasing Silva through the London Underground system they both supposedly get on a train at Temple Station on the District Line. The train is in fact a Jubilee Line train, but with District Line route maps on the inside. The back said Elephant & Castle and the front said Wimbledon.
In the car scene just before the MI6 explosion, invalid IPv4 addresses (with digits larger than 255) are displayed on the laptop screen. [This gets debated, with comparisons made to 555 phone numbers. 555 may not be a real area code, but there's nothing technically preventing it being one. IP addresses, however, just can't have numbers larger than 255 - it's like a phone number having a % symbol in it].
James Bond is seen running down Whitehall in London. Behind him a number 38 bus is seen. However the 38 does not travel down or indeed particularly near Whitehall. This was probably done to show off the new Routemaster bus, which is currently only used on the 38 route.
When Bond drives M away in the Jaguar XJ, police cars can be seen driving towards them when he speeds around the corner. The Volvo police car in front has two yellow dots on the top of the windscreen which mean armed response, but on the roof there is a circle, which means traffic/incident response. The aerial roof marking symbol should have been a five-edged star for armed response. Metropolitan police don't even use Volvos for armed response. They use BMW 5 series and X5s.
Bond and Silva travel from Temple station on the District/Circle line, which is a sub-surface line that has square tunnels (dug out from above and then covered over) and uses large trains with an almost square cross-section. However, the train they board is of the type used on the deep-level lines (eg. Northern and Jubilee lines), smaller and almost cylindrical in shape, and is seen to fit snugly into the cylindrical tube tunnel as the train leaves the station. They therefore can't be travelling on the District/Circle line, and must be on a deep-level line instead. The disused Jubilee line platforms at Charing Cross are often used for filming, and photographs available online show one such platform recently dressed as Temple station.
M is called to a House of Commons Committee - Commons Committees are staffed by "backbenchers" (members of parliament not in their party's cabinet), but present here are a minister and a civil servant (Fiennes).
When there is a BBC News Report for the BBC News at 10 (clock bottom right) the wrong news studio is used rather than the correct one. They also used the wrong opening standing position. The studio shown is for the BBC News at 6pm, and the position used is only used for the intro after the half way segment, not the lead headline.
When Bond is being driven back to MI6, there is clear rain on the window. In the angle from above the car, there is no rain visible on the top of the car. Despite rain on the passenger window, there is no rain on the car roof for some reason.
As Patrice enters the Shanghai tower at ground-level with Bond following, he shoots the night security guard. When Bond enters the building, he goes up a level and finds the guard in a large pool of blood at the top of the escalator. If the guard was bleeding that profusely, there should have been an obvious trail in the lobby and on the escalator where he was dragged, but the pool has very smooth edge with no traces leading to it.
After Bond and M arrive at Skyfall they review the available weapons with Kincade. Kincade hands Bond what looks like a double barrel shotgun and says that is was his father's hunting rifle. This is an "express rifle", a double barreled large caliber rifle designed for dangerous game at close range, and easily mistaken for a shotgun.
Bond's father's gun is manufactured by Anderson Wheeler, so it might seem unlikely that Andrew Bond, a representative of the arms manufacturer Vickers, would have habitually used a competitor's product. But given the fact that Vickers only built military weapons and never produced sporting arms, it is perfectly normal that he would have chosen a double rifle from one of the big sporting guns firms in Mayfair.
When Bond arrives at the Skyfall house and meets Kincaid, Bond introduces 'm' only as 'M', but Kincaid shakes M's hand and says "nice to meet you Emma". Since this is not either the character's full name (as far as we know), or the actresses name, it was probably either deliberately misheard by Kincaid ('M' and 'Emma'), or an easy affectation for the name he really heard. 'M' and 'Emma' are not very different, especially for someone not used to only hearing a single letter as somebody's name. Plus Kincaid may have thought Bond was saying Em, which is a commonly used shortened form for Emma.
In the beginning gun battle, the agent that Bond is having a shoot-out with has a very large, round clip attached to his machine pistol. At the end of the shoot-out it is no longer attached to his gun. However he can actually be seen dumping the magazine before stealing the police motorcycle.
When Q investigates Silva's computer he connects it to the MI6 network. No one who knows anything about computer security would ever connect a suspect computer to the network before it has been fully investigated and found to be safe. Such a system would be investigated in strict isolation.
When Eve accidentally shoots Bond while he's fighting Patrice on the moving train, presumably she has more than one bullet in her rifle that can also eliminate Patrice and prevent the hard drive being stolen?
During the subterranean chase the villain has to adapt his schedule to escape a pursuing Bond, but is somehow still able to predict exactly when and where Bond will catch up to him and to have previously planted explosives at that location and timed it so that an underground train arrives exactly on schedule.
Bond and M depart for Scotland in Bond's vintage Aston Martin because it is his personal vehicle and thus untraceable by MI6. However, M makes reference to the vehicle having an ejector seat, and at the Skyfall shootout the car is revealed to have machine guns hidden behind its headlights, so clearly the vehicle was at some point substantially upgraded by the agency (and thus has extensive electronic equipment that could be tracked).
Bond supposedly grew up on the Estate, but somehow was unaware of the deep pond halfway between his own house and the only other building nearby. It is unlikely that he would not have known about and remembered the pond and how to get about the area.
Bond is shot twice as he's chasing Patrice on the train in the opening sequence. The first time, as he is sitting in the cab of the digger, he is shot near his right shoulder and we see the blood when he is walking inside the train. The second time, Moneypenny shoots him unintentionally as he is fighting Patrice on top of the train; the shot that effectively pushes him off the train to the river below, evidence of a direct hit. There is no indication of Bond wearing a vest and there is no further mention of any wound that should have resulted from being shot twice.
When the tube train falls through the hole into the area below, all its lights are still working. Once each carriage leaves the rails, which carry the electric current, these would all have gone out and the train would have been in darkness.
The helicopters which arrive at Silva's lair on Hashima Island are not heard until they appear immediately overhead. These aircraft are extremely noisy, and can be noticeably loud even when a mile or two away.
When Bond is chasing Silva on the Underground, all the police officers (and Silva) are in Metropolitan Police uniform. This also occurs in the aftermath tube train crash when officers rush to the Undergrounf station. The officers should in fact be British Transport Police officers, as they police the Underground, not the Met.
When Q tries to decrypt Silva's laptop, it ends up infiltrating MI6's network instead. No computer engineer would ever hook an unknown laptop directly into his network, especially if it was a suspect machine like Silva's. Q should have put the laptop on some sort of testing network completely isolated from the rest of MI6's machines.
After the terrorist attack on MI6, TV reporter explains that six people died and others were injured in the hospital. In the next scene, when M stands next to the coffins, we can count eight coffins that were the victims of the attack. However, the additional coffins could be explained that two of the injured had subsequently died of their injuries. The image is reminiscent of Bloody Sunday (1920) where several British agents were murdered by terrorists.