Peter Sellers and Orson Welles hated each other so much that the filming of the scene where both of them face each other across a gaming table actually took place on different days with a double standing in for the other actor.

Although the conflict between Peter Sellers and Orson Welles has become legendary, it was reportedly Sellers who suggested Welles for the role of Le Chiffre.

Woody Allen's scenes were shot in London. Producers delayed his final day of shooting so many times that, out of frustration, Allen left the set, went directly to Heathrow Airport, and flew back to New York City without changing out of his costume. There, he appeared as the Mystery Guest on What's My Line? (1950), and completely fooled the panel because nobody had any idea he was in New York.

According to interviews with director Val Guest, Peter Sellers became such a problem during the filming that the decision was made to fire him before he had finished all of his scenes. As a result, the end of the marching band torture scene was noticeably altered and Sellers' subsequent scenes were written out.

Back in 1962, Ian Fleming had already decided on David Niven for the role of James Bond in Dr. No (1962). He was cross when Sean Connery was chosen, but was apparently so impressed with the way Connery portrayed Bond that he gave the character Scottish ancestry. Of course, David Niven was also of Scottish descent.

Continuity

During the car chase, the milk van drops half of its cargo in a sharp turn. Later on, when the van passes the camera, the van is fully loaded again.

When Evelyn Tremble, alias 007, is playing baccarat, he initially has some red plaques (large, flat rectangular chips used for large amounts), which he loses. After his credit is declared as good, Tremble receives a large tray of green, white, red and yellow plaques. They appear and disappear between long shots and close ups of his cards.

When Sir James Bond and Miss Moneypenny are running down the hall in SMERSH headquarters, they are holding hands, with Sir James on Moneypenny's right hand side, then not holding hands (with Sir James now on the left). They change sides three times before they reach the blue door.

The giant oval-shaped window gets blown completely out with no glass remaining. It cuts away to another shot, then cuts back and there are shards of glass still in the window.

When Vesper Lynd is on the rotating bed with Evelyn Tremble, persuading him to put on costumes for her to photograph him in and she gets up to use the still camera on the tripod, her robe abruptly changes color from a pale, almost white, pink to a darker pink and the decorations in her hair change from feathers to hearts.



Incorrectly regarded as goofs

When the French Legionnaire (Jean-Paul Belmondo) comes in in the final fight scene, he hits a man and immediately writhes his hand in pain and says "Merde!" (A variation of one of his scenes in That Man from Rio (1964).) Sir James Bond asks him what he means, and he translates it a "Ooooch!". In actual fact, 'Merde' is the French translation of 'sh

t'. He does exactly the same when seen later. "Merde" has long been snuck into English-language movies as a bucking of the censors, with its subtitles translated euphemistically.

When Sir James Bond introduces himself to Moneypenny, he says "... I'm partial to Jasmine Tea." MoneyPenny: "Jasmine tea, Sir?" Bond: "Lapsang Soochong". These are two very different teas. Since Bond (and David Niven) would certainly know the difference, this may be an intentional joke, e.g. a reference to the "real" Bond's "Martini... shaken, not stirred", or (as much of the dialog was improvised) a cast in-joke.

The flying saucer lands in Trafalgar Square directly between four bronze lions. Nelson's Column (one of the most famous landmarks in London) is missing from between the lions because it is now outside of Vesper Lynd's apartment in Mayfair after she purchased the column.



Revealing mistakes

When the flying saucer is extending the ramp for the horseman to ride up, two pedestrians disappear as they walk into the part of the frames overlaid by the saucer graphic.

During the climactic battle when the US cavalry man blows his bugle, there is already a hole in it before the arrow goes through it.

When General MacTarry's hair-piece is blown away - a few seconds before that, there are clearly some odd movements in his hair, indicating some attached string being prepared to be pulled.

In the Baccarat scene between Bond (n? Tremble) and Le Chiffre, in the long shots both characters are surrounded by a crowd of extras, mostly women. In the close-ups of Bond alone, the background shows only a few people, mostly men; a woman in a red dress appears in two shots but not in others, while Vesper is in the shots that do not have the red dress. Several of the characters appear motionless and slightly blurred, possibly a still back-projection or montage.

When the pod from the flying saucer "drives" up out of the water in the underground dock, the cable pulling it is plainly visible near the bottom of the screen.



Miscellaneous

When one Scotsman attempts to throw a heavy stone ball at Bond, he misses Bond and the stone bounces off another Scotsman away to the right of the Scotsman. A heavy stone ball would drop straight to the ground, not bounce off.



Anachronisms

The film is set in 1966 or 1967 (as determined by the "Les Beatles" graffiti on the kiosk (a pissoir, actually) in the opening shot), but some characters have back stories that would put them in older eras: Sir James Bond appears to be in his mid-50s, but is said to have received the Victoria Cross at the Siege of Mafeking (1899-1900), which would put his age closer to 90; Mata Bond is portrayed as a 20-something, but she should be at least 50 since she is the daughter of Mata Hari who was executed in 1917; Frau Hoffner and Polo look to be in their mid-30s, yet they trained Mata Hari, so they ought to be in their mid-80s at least.



Audio/visual unsynchronized

When Le Chiffre says to Tremble, "The most exquisite torture is all in the mind," Orson Welles' lips don't move.



Crew or equipment visible

When Le Chiffre is levitating the woman in the casino, the steel girder holding her up is briefly visible in the upper right corner of picture.

In the Jaguar / Bentley / Milk Float chase, when the first truck crashes off the road, a camera is plainly visible in the left side of the screen.

When Lady Fiona McTarry enters Bond's bedroom, a crew member can be seen in the mirror on the far wall. He disappears later in the shot.

When Lady Fiona is climbing down the drain pipe, some wires can be seen helping her or keeping her safe.



Character error

In the "vault" scene towards the end, Bond says, "Careful, it's vaporized lysergic acid, highly explosive". Lysergic acid, used in the synthesis of the hallucinogen LSD, is not explosive at all.

When Evelyn Tremble looks at Q's video wristwatch, it shows a clip of Vesper Lynd. This was a post-production error. It was supposed to show Bayldon, who stands in the background looking at the face of a complimentary wristwatch. This mistake caused a joke to be lost: Tremble says, "This is amazing, it's like you're in the same room" because Bayldon is indeed in the same room.

When "Bond" (Terence Cooper) throws down the Chinese girl during his anti-female training, he ends the conflict by saying "Sayonara", which is actually Japanese.

M tells his companions that Sir James had to lure Mata Hari across the Spanish frontier into France. Of course, this never happened, and the real Mata Hari never entered France by crossing the Spanish frontier. She was last in Spain in November 1916, and was arrested in Paris in February 1917 after the Germans exposed her to the French as a double-agent because the intel she was providing them was deemed useless (she was recruited by France to seduce Crown Prince Hohenzollern as they believed mistakenly that he was a commander in his father's army). However, neither the French nor the British could produce definitive evidence that she was spying for Germany at her trial.