Revealing mistake: When Mrs Whistler's body is being removed from the canal in Amsterdam, it's clear in the long shot that it is just a dummy.
Continuity mistake: After Bond pulls the chain near the mudbath, the mud falls down as a thin stream. In the next shot, it's much thicker. (00:02:40)
Revealing mistake: When Bond knocks Blofeld unconscious with a lamp in the fight at the start of the film, look carefully and you can see that Blofeld is already knocked out before the lamp comes into contact with his head.
Continuity mistake: In the scene where Bond comes aboard the oil rig, Blofeld says "How disappointing." whilst Tiffany can be seen on a sun lounger in the background. Towards the end of this shot, she raises her right arm to her sunglasses. In the very next shot of her (closer up), she raises her arm again.
Continuity mistake: When Plenty offers to help Bond with the game, behind them is a man in a yellow shirt and a man in a brown coat and green shirt. However in the next clip there is a lady in a pink dress instead of the man in the yellow shirt. She was nowhere to be seen half a second earlier.
Continuity mistake: When Blofeld is watching Bond and Plenty in the casino on the surveillance camera, on the screen a man in a dark shirt can be seen on Bond's right side. But in the next clip (and in the preceding clip) a little lady in a white dress is standing on Bond's right side.
Factual error: Diamonds, being pure carbon, would burn in the cremation of the body containing them. Cremation temperature is about 1,000 degrees Celsius, diamonds burn at about 850.
Continuity mistake: Tiffany is wearing a red and purple bikini top cover on the oil rig. But in the last oil rig scene where she shoots the machine gun from the tread of the crane and falls off the rig, her top changes color to brown and red. No purple at all.
Revealing mistake: When Bond hoists Mr. Wint overboard with the bomb tied to his coat-tails, Mr. Wint is not Bruce Glover but a stunt double.