Continuity mistake: When Grant hits 007 on the back of the head with his gun, he falls onto his back about six inches away from the seat, but in the next shot 007 is lying on his right side and his face is right up against the seat.
Continuity mistake: When Grant is putting something into Tatiana's drink, her arms are together in her lap as she is looking out of the window. As the next shot cuts in when the waiter says "excuse me merci", Tatiana is holding a fork in her right hand.
Continuity mistake: When talking to Klebb and Kronsteen, Blofeld's ring swaps hands briefly.
Plot hole: Bond lies to Tanya on the date the embassy would be bombed (Karim and Bond knew the 13th) and Tanya denoted the deception by telling Bond when he came in the decoding room she thought it was the 14th. How did Grant know to A: be on the train and B: have an entire escape plan set up for the wrong day?
Revealing mistake: When Bond kills Red Grant in the train compartment by strangling him with his own garrote wire, the final shot reveals that the garrote is missing and Bond is faking it.
Continuity mistake: When 007 pulls the gun out on Grant, watch how Grant's shadow changes position in the background in between shots, from when he says "take it easy 007" to his next line "my escape route's only for one"
Continuity mistake: When 007 puts Tatiana into the back of the truck with the flowers, he also puts his own attache case and the lector into the back of the truck: But later, when he stops the truck and gets out, he can be seen holding part of the rifle that he will use to shoot down the helicopter, then in the next shot he is carrying the lector from the truck again.
Continuity mistake: In the boat chase scene, when the bullets hit the drums on the back of Bond's boat they hit the ends of the drums. In order for that to happen one of the chasing boats would have to be alongside of Bond's boat. At no time are any of the chase boats shown to be that close.
Continuity mistake: In the boat chase scene, when Bond fires the first flare he is on the right side of the boat. In the next shot (from far away) he is on the left side, and the very next close up shot he is back on the right side.
Continuity mistake: As the destroyed helicopter falls, it first falls straight and smooth. Then the wreckage is twisting, and finally on the ground. As the wreckage is on the ground, there is no indication that it has just hit, as indicated by the off-screen noise, and the explosions are on an already settled prop set up for the stunt.
Revealing mistake: When James Bond opens the water to take his bath, there's only water vapor coming out of the faucet.
Visible crew/equipment: Near the end, where Klebb and the man who played chess are standing in front of Blofeld, a man with a poisonous knife sticking out of the end of his shoe kills someone. Just before he does, the cameraman's shadow can be seen on his shirt.
Continuity mistake: When James finds the Russian defector in his hotel bed, they kiss, a lot. Problem is: At first, she's wearing a generous amount of red lipstick, and when they finish, she is still wearing a generous amount of lipstick, and it is not smudged, which it should be, and James doesn't have any lipstick on his face and mouth, which should be impossible - not even a smudge.
Continuity mistake: When Bond arranges to meet Tania at the mosque he is carrying a camera. When he spots the Bulgar spying on Tania he puts the camera down by a pillar. He takes out his gun and raps it in a handkerchief. The next scene shows him with his camera (without the gun) looking at the Bulgar again. This is a repeat shot from a few seconds before.
Continuity mistake: At the end of the film when Bond is examining the film taken in the bridal suite, the film is in 8mm format but when he throws it into the Venice canal it changes to 16mm.
Revealing mistake: On the boat, look carefully when the man falls in the water. The man jumps to give the illusion that Bond pushed him.
Continuity mistake: When the helicopter chases Bond, a headset and a hand speaker appear on the close-ups but disappear on the wide angle.
Continuity mistake: After the helicopter crashes, Bond runs towards the car and one can notice it's not Sean Connery but his stunt double, who looks absolutely nothing like him.
Continuity mistake: When Bond hides from the helicopter under a crack in the rocks, the rocks, the crack and the bushes around are totally different in the close-up. Plus a bunch of moss suddenly appears.
Audio problem: As Grant throws a knife at one of the gypsies at their camp there's a swoosh sound. The sound is way too long considering how near he is and how hard he has to throw it in order for it to be lethal.
Chosen answer: It would, yes. Also I am to understand that it's his sense of humour.
Alan Keddie