The motorcycles used in the chase scene are BMWR1100RT's, which are 2 cylinder motorcycles. The engine noise heard from them is that of a 4 cylinder sport bike, a very different sound than a 2 cylinder sport-touring bike.
When Lyle arrives to the first meeting with Stella, he is riding a yellow Ducati 748 superbike. The engine note heard is of a generic inline-four cylinder sport bike, which sounds nothing like the Ducati desmo L-twin in the 748.
It's stated by Mashkov that "he will be on Train 59 to New Orleans." Train 59 is called "The City of New Orleans" and leaves directly from Chicago to New Orleans. It doesn't go anywhere near Los Angeles. The only train from LA to New Orleans is Train #2, the Sunset Limited.
When the three MINIs jump in front of the underground train
you can see the last MINI hit the front of the train with the rear bumper and the whole lot goes through the tunnel. But in the next shot Napster stops the train and it stops just in front of the tunnel to block it.
In the beginning when the crew drove into the water, they all would have died, the temperature of the water is so low, your heart and lungs would stop working.
And if the dive would not have killed them, they would die outside the water, with wet clothes and a temperature below zero.
After Stella parallel parks her red vintage MINI Cooper while driving at full speed, we see through her windshield the vehicle in front of her 5 to 10 feet away. After she gets out her car is shown to be parked only 2 or 3 feet away. The space shown when she is driving is clearly much bigger than in the side shot. When driving like that you would not be able to park a car that tightly.
When the crew meet to get phones and IDs, Lyle rides up shakily on a yellow motorcycle and drops it to the right of the red Mini, with the front wheel pointed roughly at the right side of the Mini. In the shot showing them departing, however, the motorcycle is shown on the foreground to the left of the red MINI, and it is pointing away from the MINI.
When the MINIs are about to cut in front of the train, whenever we view the event through Napster's screen there is a railing at the end of the platform (that would make it impossible for them to pull around). Whenever we are shown "live shots", the railing is gone and the position of the train has changed.
After the MINIs fly out of the storm drain, Handsome Rob turns around and tells Left Ear to open his door, causing the motorcyclist to flip over the door. When the door is opened, the window is clearly up and in one piece, but is not there when the motorcyclist hits it and it is still intact and rolled up in later shots.
When the MINIs are racing through the city together, the blue one clearly has damage to the right hand side rear quarter panel. After they split and and the blue one does a left, it clearly has no damage now, or any time later.
After damaging Charlie's MINI Cooper with the tail rotor, Steve's helicopter is set down and he commandeers a truck to continue the chase. As he speeds away the top rotor of the helicopter is completely stationary, despite the fact that only a few seconds has elapsed and there was insufficient time for it to have "spun down" to a stop.
Towards the end of the movie when Steve is in the helicopter chasing Charlie in a MINI, Charlie makes a left turn at a street corner. The street markings make it clear that all the traffic on the street is going the wrong way down a one way street. (Charlie drives over a right turn arrow in the left-most lane that is facing him.)
When the Cadillac pulls up in the scrap yard to pick up Mashkov, at first it is a black Cadillac Seville. There is a cutaway to some equipment in the yard, and in the next shot of the front of the car pulling up next to Mashkov, it is now a Cadillac CTS.
When Lyle measures the trucks as they pass the first camera, each truck's number is clearly visible on the panel immediately behind its LHR wheel. In all other shots, none of the trucks is numbered there.
When Rob drives the van off the bridge into the water, the van flips end-over-end, landing upside down in the water with the front end of the van facing back towards the bridge. In the next shot looking out over the van from above the bridge, the front end of the van is facing away from the bridge, with the dual rear tires visible closer to the bridge.
When Charlie is being chased by Steve in the helicopter, he pulls a 180 when he sees the truck blocking his way. When he starts up again and the shot shifts to ground level, you can see the reflection of the right front wheel in the safety shield that's in front of the door camera.
The train that Lyle remotely stops in the station is a Blue Line train. The Blue Line is a light rail line that runs from Downtown Los Angeles all the way to Long Beach. It doesn't go anywhere near Hollywood.
When John Bridger calls his daughter Stella at the beginning of the film, she is still in bed, and the light outside the window indicates early morning. She confirms this by saying, "Daddy, it's early". However, John calls her from Venice, Italy, at about 8:30 am local time. Assuming a 6-hour time difference to Philadelphia (where Stella is) this would make it 2:30 am her time. It is unlikely that any light would be visible at that time of the morning.
When the MINIs are going down the metro, in the Hollywood and Highland station, it's not really the Hollywood and Highland station, but in fact the 7th and Metro station, stationed in Downtown Los Angeles, based on the fact that the three cars jump into the tunnel in front of a Blue Line train.
Bullets do not travel at full speed through water. In reality, all bullets slow rapidly as soon as they hit the water, contrary to what is seen when Steve shoots into the lake. Not only do bullets slow down quickly when fired into water, high powered bullets from weapons like the assault rife Steve is using actually shred within inches of the surface of the water and then simply settle to the bottom of (in this case) the lake. Oddly enough, high-powered bullets have less penetration through water than lower-powered ones (a bullet's power is determined by the cartridge charge).
It was stated earlier that brass would not be used in explosive applications and that gold is the best conductor. Actually gold is only the third best conductor. Copper is 33% more conductive than gold and Silver is 50% more conductive. Gold is used for critical contacts, not because it is a better conductor, but because it does not corrode. While brass is not an excellent conductor, it is 28% as conductive as copper and 40% as conductive as gold.
In the alps, the border-sign says 'AUSTRIA'. In Europe, the country's border-sign is always spelled in the language of that specific country at that location. At the Italian-Austrian border that would be German, not English. So the sign would say: 'Republik Österreich'
At the beginning of the movie when they are in Italy stealing the safe, Lyle tells Steve that the wall is 14 feet 8 inches away. On the device, it reads 14.8, assuming 14.8 feet or 14 feet 9.6 inches. 14 feet 8 inches would be 14.667 on the device.
When Charlie is confronted by Steve in the helicopter under the freeway, the buses in the background are MUNI buses. The movie takes place in Los Angeles; MUNI is the public transportation in San Francisco.
When Charlie tells Lyle how many bricks there are, Lyle tells Charlie 208. He asks Lyle how much that's worth, and Lyle (after making a mistake) says $27 million. However, at that time, regular (non-decorated with the dancers) bricks were worth about $168,000 each, which would make 208 bricks worth at least about $35 million.
When the helicopter pilot says they're moving out he gives the flight identifier code as "three kilo fox" (3KF). This code is normally the last three characters of the aircraft registration but their helicopter has the registration N723KP.
The dam the boys are standing on after stealing the gold (for the first time) is the Fedaia Dam; it is located in the middle of a great ski area also known as "The Sellaronda". You can see the lake and the dam when you are standing on the ski slopes. Considering there is a lot of snow on the mountains, it's probably skiing season. So they couldn't have had a big gun shot fight, and just take their time with getting out of there; a lot of people would have been witnesses.
When Charlie is asking Napster about the monetary value of the gold in the safe, he tells him, "Thirteen wide, four high, four deep," and Napster works out the value. However, this is the value for only one shelf of the safe. So while the team celebrates $27 million, they've actually got four or five times that amount.
When we first see Stella breaking into the safe for the police, afterwards a crime scene tech comes in and begins taking pictures of a tape outline of a body on the floor. Police and crime scene techs never use tape, as it could compromise evidence.
The crew sets off a charge and the armored truck falls through Hollywood Blvd directly into the subway tunnel. In reality, the subway tunnels underneath Los Angeles are at least 6 stories underground. That means it would have to travel through at least 60 feet of reinforced concrete, soil, and more reinforced concrete before it would land on the station floor.
After Wrench modifies the MINIs, he and Charlie are walking past a shelf filled with what Wrench describes as "unnecessary engine parts". On that shelf are three exhaust headers and three crankshafts (along with many other parts) which are absolutely necessary for an engine to run.
Because the letters of the "Hollywood" sign are on a hill with an uneven, undulating surface, they're not all in the same plane. This means that from some angles it really does look as though the sign says "OHLLYWODO".
The weight of the gold recovered from the armored truck, valued at $27 million, would weigh around 4,500 pounds at the period price of gold. It is entirely possible to divide that among three (~1,500 lbs per car) highly modified MINI Coopers and move it around quickly. While it would make the cars quite tail heavy (they would land rear first, at quite an angle when jumped), it is not implausible to modify the suspension to handle the additional weight and increase power to achieve a reasonably quick degree of performance. In fact, we can hear that the MINI Stella drives features the distinctive whine of an Eaton M62 supercharger. The MINIs have a 63/27 F/R weight distribution out of the box. With 1,500 lbs of gold in the rear, the distribution would change to roughly 41/59 and the car would weigh just over two tons.
The wide shot of the driving range facing the "golfers" is not reversed; the numbers and letters are backwards because the signs are facing the street on the other side of the fence, and the camera is showing the back of those signs.
When the initial modification work is done on the minis, they are taken for a test drive. There are interior shots of Charlie, Rob, Stella and Left Ear driving but the exterior shots only have three cars.
During the chase through the Los Angeles River Basin, police cars blocking traffic and officers calmly watching the chase can be seen on an overpass. They couldn't have been part of the chase as no one except the two gangs of thieves know what's going on at this point.
When the MINIs exit the pipe during the escape from the underground at least one of the cars lands with its nose hitting the ground first while its tail is high in the air. Due to the weight of the gold in the back of the car, this would be physically impossible.
It is said in the movie that the safe carried by the truck near the end of the film has a lock with a glass plate, and if it's not drilled right the glass could break. The glass didn't break when the car with safe inside hit the ground after traveling about eight meters down.
The diver propulsion vehicles need a more or less neutral buoyancy to travel. To counteract the gold's weight, air-filled bladders of around 18 times the volume of gold would have been needed (gold has a density of 19.3 grams/cubic centimeter) but none are showing.
At the end of the movie, when Charlie Croker hands off the case of gold, he easily spins it around with one hand and lifts it off the ground very easily. Even if were only half full of gold, the case would not be that easy to lift.
When Stella's MINI is first loaded with weights, you see that some of them are strapped down and some are not. The ones that aren't strapped down would've been shifting around the inside of the car during the test run, and probably causing some decent damage. Yet we never see any of them shift their positions.
When Donald Sutherland is talking to Charlize Theron on the phone at the start of the movie, just before they end the conversation, a guy can be seen in the background in Venice with a camcorder clearly recording Donald and the film crew.
During the scene where Steve steals the gold, first, as "Handsome" Rob is accelerating the van, one of the gunmen fires two shots directly at the windshield, but with no effect (no bullets seen impacting the windshield). Then, as the van is crashing through the guardrail, you see Steve fire three shots, then you see an unidentified man, possibly the passenger of the Land Rover, fires two shots at the van. Then, for two or three frames, the gun of the unidentified man is seen with the slide locked open, as the shooter has apparently run out of bullets but is still pointing the now-empty gun at the van.
The goof item below may give away important plot points.
2003 gold prices were about $372 per troy ounce, making the thirty million Charlie and his crew planned to steal back from Steve weight about 5,040 pounds, not 2,700. The curb weight of the 2003 MINI Cooper is 2,524 lbs. The gross weight (weight of all cargo, passengers, the driver and a full tank of gas) is 3,236 lbs. To add another 5,040 pounds for a GVWR of 8,276 absolutely impossible for a MINI Cooper, even with beefed up suspension and engine, the axle could not sustain the weight nor could the tires, the best 175/65R15 tires for the mini cooper having a maximum load of 1,102 lbs. per tire. Thus, the MINI Cooper, while fascinating to see and obvious marketing product placement, was exactly the wrong car to do the job, even if the 5,040 pounds of gold was split between all three minis.