During Kamal's backgammon game with The Major, Kamal doubles then rolls a double 6 and the Major resigns. In fact, The Major had his home board locked and there is no roll that would have helped Kamal. (In the long shots, one can see the 1 through 5 points are closed; in the closeup of the double 6, one can the 6 point is closed).
A shot of a sign which says "National Art Repository" in both English and Russian has the Russian word for "art" misspelled: the fourth letter should be the Russian "u" not the Russian "ch." Also, in the word "National" the "hard sign" letter was mistakenly used instead of the "soft sign" letter. These pairs of letters do look alike, which suggests that the text was likely copied out of a dictionary erroneously.
When the train enters the American sector, the board message reads "You are entering the American sector" in English, Russian, French and German. The Russian phrase contains a serious language mistake: in the accusative case, inanimate and animate objects have different endings. The "American sector" is an inanimate object, so it should have zero ending in the accusative: "v amerikanskiy sektor", not "v amerikanskOGO sektorA". Also, the "soft sign" letter in the word "v'ezzhaete" ("you are entering") should be the "hard sign" letter.
Bond's "rail car" gets hit by the train and ends up in the river. The car is towed and winched almost instantaneously after it lands in the water. This would not have been enough time for the vehicle to be called in, dispatched, towed, and winched.
When Bond bursts into Octopussy's bedroom and kisses her, they are standing next to her octopuses-shaped bed frame on the outside of the octopuses crossed tentacles. Without moving, when the camera pulls back, they are standing on the inside of the octopuses crossed tentacles so they can conveniently fall into bed.
Near the end of the movie, when Bond enters the circus, he sits down in the audience. Noticing Magda, he covers his face with what looks like a blank white sheet of paper. When the camera cuts to a long shot, he is covering his face with the red circus brochure and when the cut goes back to the closer one, he is again holding a white paper.
In the dining room scene at the palace, when Kamal first threatens Bond, he says that the soufflés can't wait. What they are subsequently served to eat is not a soufflé, but looks to be a kind of flan. When the second course comes (the sheep heads), again, there is no soufflé in sight.
The small jet used in the opening sequence is an Acrostar, a one-man jet with a single engine embedded in the fuselage and a the horizontal stabilizers attached to the fuselage well below the engine exhaust. However, as the jet approaches the hanger for its fly-through, the jet seen through the hangar doors is clearly a much larger aircraft, with twin engines on tail-mounted booms and a high T-tail; it looks an awful lot like a Lear 24.
When Bond arrives in the hot air balloon the sky is cloudy and it is either evening or early morning. There is a sudden change in the weather conditions and time of day moments later when Kamal and Gobinda escape from the palace on horses; the sky in now clear of clouds and the sun is high in the sky.
Bond blows out the front two tires when he fires his machine gun into the tires of the military transport he had just escaped from. When that transport veers off into a small shed, both front tires are still clearly inflated.
Once he has trounced Khan at backgammon, Bond splits the IR20,000, giving some to Vijay, who places it in his inner right coat pocket. Later, while being pursued by Gobinda in a 'company' tuk-tuk, Bond causes a crowd distraction by throwing the money into the air, but Vijay removes it from his left coat pocket. It's not a mirror-reversed scene, because Vijay's coat is done up left-over-right, in the correct fashion.
Visiting Q in Delhi, 007's watch shows a date of Sunday 16th. A few hours later it reads Tuesday 18th. The events at the Bezirk Karl-Marx-Stadt occur one week later (which would make the date at least Wednesday 25th), but it's only Saturday 22nd by his Seiko.
In the pre-titles sequence, when Bond's little aircraft is about to come out of the horse box you can see the military vehicles rounding the corner. When the aircraft comes out of the horse box you can clearly see that there is nothing ahead. Then in the next shot the military vehicles are there again, and closer than in the first shot.
Kamal gives a picture of Bond to the thugs. He drops it on the table, covering some playing cards. The King of Clubs and the Jack of Diamonds are almost fully covered by the picture.
A few seconds later, the two cards have moved, almost uncovered.
(at around 1 h 21 mins) James Bond is driven to East Berlin in a black, late-70s Mercedes 300D standard sedan. However, as Bond and 'M' talk to each other on the way to Checkpoint Charlie the interior of a Mercedes mid-70s limo is shown. This becomes even more evident as 'M' opens the right rear door and gets off the car by pulling himself to the front, leaving a tilting side window behind him, although once he steps on the street his body's attitude is much different when seen from the outside.
During the fight sequence between Bond and Gobinda, the Octopussy Circus train enters a tunnel featuring a red-and-white sign reading, "Unser Beitrag zur positiven Bilanz: tägliche Planerfüllung!" ('Our contribution to positive balance: daily fulfillment of the plan'). This is obviously intended to be an East German propaganda banner, but the train has already entered West Germany at the time of the fight.
The train scene (shot in Peterborough, England) is meant to be in Germany, but features quintessential English countryside and British pylons. East Germany's topography is markedly different, particularly as it has more pine trees as opposed to the hedgerows and broadleaf typical of England.
The Horse Box that Bond parks his open top Range Rover alongside in the opening scenes at the military base is a distinctive 1960s/1970s British built Bedford TK series lorry. It would be extremely difficult to find one of these in the Generic Latin American Republic where this scene takes place.
The three Soviet soldiers Bond fights at the tunnel entrance carry the Austrian Army "Steyr AUG" standard rifle and not as they should (and all other Soviet soldiers in the movie do) a Kalashnikov or derivate of it.
While Bond is running through the jungle to escape Kamal and his men, at one point he turns around and runs into a large spider web and wipes a tarantula off of his elbow. Tarantulas do not build webs. They are burrowing spiders.
(at about 55 minutes) Orlov and his men deplane the helicopter under rotating blades with their uniform caps on. It is a standard safety practice that anything which may become airborne and possibly sucked into the blades is removed and secured prior to deplaning the helicopter.
The train of the "Octopussy Circus" has a steam engine which was a quaint, obsolete technology in 1983. However, due to the rising oil prices in the 1970s the railroad company of the German Democratic Republic started re-using steam engine trains in their regular traffic. The last steam engine got out of order in 1988.
The villains had set the bomb to go off in four hours prior to the circus arriving at the military base. This is not nearly enough time for the train to unload all crew, equipment and supplies and then set up to a full house audience to witness the last seconds of the timer.
When the bomb is being loaded onto the train, the dialogue says, "It is preset for a four hour delay. Set time for the explosion here." This is a contradiction, as the bomb cannot be scheduled to detonate both at a specific time and after a four hour delay. This contradiction is repeated later, when Kamal Khan commands that the bomb be set to detonate at 3:45, and a four hour countdown commences. This would only be possible if they had intentionally waited until exactly 11:45 to start the timer, but nothing in the scene suggests this was the case.
After spending the night with Bond, Magda takes the Fabergé egg and using her sari descends from the balcony to the ground. Knowing that the egg has a tracking device in it, Bond activates the tracking device in his watch which begins beeping. Gobinda then knocks Bond out. Bond later awakens in Kamal's mansion and the watch is still beeping. Evidently none of Kamal's people thought a constantly beeping watch was unusual enough to try turning it off or removing it from Bond's wrist.
The sheep's eye that was eaten was clearly a small egg, probably a quail's egg, hard boiled and painted with the eyeball graphics. When he bites into it, there is no snappy crunch or popping sound you would hear if you bit into a real eyeball (cooked or uncooked), and the inside of it is clearly an egg, with cooked white on the outside and cooked yellow yolk on the inside.
When Bond and Vijay are trying to escape from Gobinda, Bond is fighting an assassin and flips him over, landing on the bed of nails. The nails are clearly made of rubber, as they bend around the assassin's body.
When Bond comes out of hiding among the circus trailers (right before the clowns start running) and the German police charge by his hiding place, you can hear one shout "He's got to be around here somewhere!" in German with a very clear American accent.
When Bond is flying the jet toward the hangar, the scene cuts to a shot looking at the jet coming in from the point of view of the people inside the hangar itself. In this shot, it is obvious that it's a completely different aircraft than the one we see Bond flying. This one has twin engines on either side of the fuselage as well as a completely different rear stabilizer wing configuration.
The area around the airbase at the beginning of the film is rolling hills, green grass and trees. Bond is taken away by the soldiers in a military truck as the girl follows them pulling the horse trailer behind her. Then, moments later, they're all driving down a dusty dirt road in the middle of the desert, with scrub trees, sand and mountains in the distance. Bond escapes the soldiers, whips out his handy dandy jet plane, takes off and flies through the mountainous desert for a moment before he is once again over the rolling green hills and forests around the airbase.
When the missile is launched at Bond's jet plane at the beginning of the film, it drops a bit as it leaves the launcher showing that it is actually on a wire of some kind. As the missile is seen flying through the air, it "wiggles" as it travels along the wire that it's attached to. In some of the other scenes, it looks as if it is attached to the jet by a wire that is dragging it along behind it.
When the train smashed the Mercedes off the track and into a river, the car is actually a chassis with no engine in it. Also, there is no front end damage even after a head on collision with a much heavier locomotive, traveling at speed.
When the yo-yo saw comes down for the 3rd time, Bond grabs the cord to pull the killer down from the gallery, this was not a wise thing to do, because if the saw hadn't got stuck in the desk, Bond would have lost his hand.
Bond is involved in a lengthy & dramatic chase to reach and disarm the atomic bomb that is hidden on the circus train, headed for the American military base. Instead of focusing on reaching the bomb himself (which of course makes for an exciting movie), why doesn't he just get to a telephone and phone in the dangerous situation to headquarters, who can then send in back-up and/or dispatch a team of bomb experts to meet the train as it arrives? At one point during the chase, he is even dropped off in a town after hitching a ride; he attempts to use a payphone, but gives up in less than 30 seconds after a women in the phone booth won't relinquish the phone - he then steals her car instead to continue the chase. Surely this isn't the only telephone in town - why not find another one? It's true that he may not have money or an ID on his person, but surely the British Secret Service has made provision for an agent to call in on a phone without these things (call collect, a special toll free number, etc.).
With only 5 minutes left before the bomb explodes, Bond sneaks into a trailer at the circus and manages to disguise himself in an elaborate clown make-up and costume before making his way to the big top (where the bomb is located). Moments later, when he confronts the General, Bond states that the bomb will explode in "90 seconds". The clown make-up Bond wears is very professionally done, and, conservatively estimating that it took only 30 seconds to leave the trailer, enter the big top, and approach the General, that means that Bond entered the trailer, applied the complicated make-up, AND got into the elaborate clown costume in 3 minutes or less. This is highly unlikely. Anyone who has done professional clowning will affirm that it takes considerably longer than three minutes to properly apply a professional clown make-up and costume. If time is so critical (5 minutes before bomb explodes), why waste precious minutes applying the make-up and costume? Why not just grab a broom and/tool/clipboard & pose as one of the dozens of stagehands/crew people/clean-up crew that can be found at all such events?
By the end of the film, after having escaped from Kamal's plane, Bond is holding Octopussy with his left hand, preventing her from falling off the cliff. In this scene the position of his right arm significantly changes between shots, once being strung-out and away from his body, then suddenly being very close to his body.
When Gobinda knocks Octopussy unconscious and throws her over his horse to transport her to the awaiting getaway plane, she is placed over the horse with her head on the right of the horse and her legs on the left. When they arrive at the plane and he removes her from the horse, she is in the opposite position with her head on the left of the horse and her legs on the right.
When Bond is on the airplane he scoots back and moves the elevator down with his feet for just a moment, then scoots back forward again. In the movie this puts the airplane in an uncontrollable dive and crashes. In reality there would be no loss of control.
Several Soviet political and military leaders in the film are shown wearing the 'Hero of the Soviet Union' medal on their chests. In the Soviet round-table scene at the beginning of the film, "Leonid Brezhnev" is seen with a single 'Hero' medal on the his jacket on the right side. Not only is Brezhnev wearing it on the wrong side of his jacket, he was awarded 3 of these medals during his premiership and should thus be wearing all three. Additionally, after Orlov is shot on the railway by border guards he mutters to General Gogol "...tomorrow I will be a Hero of the Soviet Union", Orlov already has a 'Hero of the Soviet Union' medal clearly displayed on his chest.
Beechcraft 18 aircraft never had rails along the upper fuselage; presumably, this was done for only this film. Furthermore, even with rails, there is no possible way that Bond could have clung to the aircraft as he did and survived, especially when Kamal inverted the aircraft. Bond would have easily been shaken off.
when the plane crashes to the ground, if you slow down the footage, you see what appears to be 3 different explosions. Furthermore, the source of the explosions seems to be the ground itself, and not the airplane.
During the fight scene atop the aircraft at the end of the movie, just after Bond uses the aerial to flip Gobinda in the face knocking him from the top of the airplane, there is a cut to a 1/2 second scene of Khan at the controls - the film is mirror reversed, with all of the placards and aircraft instructions shown mirror reversed.