Continuity mistake: When Domino is on the beach with 007 she is given a dog tag belonging to her deceased brother, in one shot she has both hands on the tag and moves her right arm to the sandy floor but midway through a sentence the shot turns to a different angle where she has both arms on the tag again.
Visible crew/equipment: When the cars arrive at the mansion after attending the funeral, one of the car doors opens, and the film crew's lighting equipment is reflected in the door.
Revealing mistake: During the fight at the beginning of the film, if watch it slow motion, you can see that the poker that is being used to strike Bond is not made of metal, it bends when the blows are being aimed at Bond. (00:03:10)
Suggested correction: According to this site's rules, if you have to use slow motion to see something, it's not a valid mistake.
Factual error: When Bond finds the hi-jacked sunken Vulcan, he swims into the aircraft and towards a door at the rear of the cockpit. In the real Vulcan there's no door. There is a full-width table with racks of "black boxes" where the bomb aimer and navigator sit.
Continuity mistake: During the underwater fight scene at the end, Largo does not have his eye patch on under his diving mask, but when he comes onto the Disco Volante he has his mask on his forehead with the eye patch underneath.
Factual error: When Largo's henchman is hiding in Bond's shower, Bond turns on the hot water which scalds the villan. But scalding hot water is never the first which comes out of the hot faucet.
Continuity mistake: Bond opens the door to the bathroom, and finds Fiona Volpe in the bath. He stands by the door, and when he's talking takes a step forward. The next shot, he's standing by the door again.
Continuity mistake: In the car scene where Bond escapes, Fiona did not have a cigarette lighter in her hand, but instead the gun with which she held James Bond. He grabs her hand with the cigarette lighter and moves it near the flame, but if that's the case she still would have had a free hand to shoot him with.
Continuity mistake: When James Bond is inside the plane that is underwater, just before he goes to remove the facemask of the dead pilot Angelo, watch closely as Bond is holding a torch in his left hand and he is about to remove the mask with his right hand, but in the next shot, it is Bond's left hand hand that removes the mask and the torch is nowhere to be seen.
Continuity mistake: When 007 is diving and fights with some divers his diving mask changes colour from blue to orange.
Revealing mistake: When Bond hits the fire alarm in the spa with his elbow you can see the padding on his elbow to protect against the blow. (00:24:50)
Continuity mistake: When James Bond and Domino go to the surface after he helps her with her foot stuck in the coral, there's a boat beside them. It wasn't visible underwater. (00:43:10)
Other mistake: The tape recorder in Bond's room spins very fast, and the tape is not that big. It would have to have been started not long before Bond came back, and could not possibly have been running all day.
Continuity mistake: When 007 is trying to escape from the Disco Volante, having taken underwater pictures, you see the speedboat come into contact with the oxygen tanks that 007 is using, as he is spun round you can see that the tanks are undamaged, but when one of Largo's henchmen pulls the tanks out of the water, the tank on the right hand side is damaged.
Continuity mistake: In one scene, Bond and Leiter have landed the helicopter on the sea and Bond dives down to search for the Vulcan watch Leiter. One moment he is wearing long pants, the next moment shorts, and the next long pants again.
Continuity mistake: There is an underwater love scene between Sean Connery and Claudine Auger. The air hose on Claudine Auger's scuba tank switches from one side to the other during the scene.
Revealing mistake: In the cave where the A-bombs are kept, you can see that it is not totally submerged. You can see reflections from the water surface.
Factual error: Before the final fight when the soldiers parachute down, they are spread out over a long stretch of water (up to 1 km, it seems). It would take them a long time to swim together (and none of them are wearing the underwater jet as Bond is). Nevertheless they are all in one group minutes later.
Plot hole: The Disco Volante puts to sea and Bond comes aboard disguised as one of the divers. Largo tells the captain to set course to Miami Beach. After being exposed and captured within the underwater cave, Bond is eventually rescued by Leiter in a helicopter. Bond tells him that the Volante's course is Miami Beach and that the bombs are transferred to a wreck on Fowley Point. There is no mention of Fowley Point before - the wreck just serves as a location for the final underwater fight. (01:53:00)
Revealing mistake: When the water is shooting out from the exhaust pipes of the Aston Martin, watch how easily the chasing gunmen fall down, indeed the one on the right starts to fall back before the water reaches him. (00:04:30)
