Revealing mistake: When Bond is in the trunk of the car, being taken out of the lower level of the Whyte House, a trap door opens out into the desert. The car, however, does not emerge from the door, which is never seen, but appears to be simply driving along a road. The 'door' is apparently a silhouette cutout raised in front of the passing car.
Continuity mistake: When Bond climbs the Whyte House to get to Willard Whyte, he climbs a large overhanging structure, leaning out over the main part of the building. But in the previous day shots of the Whyte House there is no such structure to be seen.
Audio problem: In the scene at Willard Whyte's house where Thumper and Bambi are fighting Bond, Bond gets thrown into 3 cylindrical statues. Just as the shot cuts, you can see the last column beginning to topple but there is no sound as it crashes to the floor in the next shot.
Continuity mistake: During the car chase scene through Las Vegas, you can see the crowds lining the streets to watch the filming, yet in some of the street scenes there are no crowds.
Revealing mistake: Many times throughout the car chase in Las Vegas between Bond and the cops, you can see skid marks where they tried earlier stunts with the cars on those points on the road. The most obvious is when Bond pulls away from the Sheriff after he approaches the car.
Visible crew/equipment: When Bond and Tiffany are talking while looking at the fish, he suddenly rolls her on her back, saying "I'm on top of the situation". As she turns you can clearly see a plaster (band-aid) carefully placed to cover any...er...accidental revealings.
Revealing mistake: In the final fight scene, Mr. Kid is set on fire by Bond and jumps overboard. What hits the water, though, is a dummy: it floats on the surface right after hitting the water (a human body would sink for a few meters before it comes up again).
Factual error: The first laser beam was not generated via a diamond, as Willard Whyte says. The first functional laser device, which was constructed by Theodore Maiman, used a ruby rod.
Other mistake: When the car chase starts in Vegas in a close up of the two policeman chasing them the driver is wearing sunglasses and the background is badly dubbed. Silly thing to wear when it's nighttime.
Revealing mistake: On the oil rig, when Bond tells Tiffany to "shoot 'em" after she gets the gun, three bad guys run towards her. A helicopter drops a bomb in front of them, taking them out, but watch the guy who is the furthest away. The bomb lands a good 20 feet away from him, far enough away not to do any harm. But he crouches a little and stays up, then he looks at his other two crewman a bit puzzled, and then falls down a bit later as he finally realises what he was supposed to do.
Continuity mistake: In the opening sequence when Bond runs over and pulls the chain to release mud onto the guy rising up to shoot him, mud clearly splatters all over him as he dives to the floor. When he gets up, his suit is spotless.
Visible crew/equipment: When the helicopters are attacking Blofeld's platform, at some points you can see a little black spot moving in the background. It is the radio-controlled helicopter which filmed them from behind.
Factual error: In Blofeld's offshore control room there's an Earth-globe turning under a model of the satellite, to illustrate its orbital groundtrack. The way it's arranged, however, shows an orbit which is impossible. It shows the satellite tracing a groundtrack over a constant latitude. The only instance in which this is possible is if the orbit is directly over the Equator, whereas the model shows it over a latitude well within the Northern Hemisphere.
Continuity mistake: Bond shoots the Blofeld-copy with a climbing hook. But when did he reload his gun? (And why? He was done climbing).
Continuity mistake: When the car chase enters a car park there is a blue car in the bottom left corner (from the overhead shot), next to the trailer which Bond makes his escape over. After Bond escapes the car is white (I think) and may also be pointing the opposite direction.
Audio problem: Peter Franks drives a Triumph Stag, which used a 3 litre V8 engine and had a very fruity exhaust note. Unfortunately this was dubbed over with a rather weedy 4 cylinder engine sound.
Continuity mistake: When Bond and Tiffany are having their dinner on the cruise liner, Bond makes comments about the wine and you can see behind him there is a liquor bottle on the food cart with a large white label facing the camera. When Bond is being strangled by Mr Wint and reaches for the bottle to smash and throw the contents at Mr Kidd, the bottle is turned and the label is facing away from the camera.
Continuity mistake: When Bond shoots a Blofeld look-alike, he falls onto the couch, but in the next shot he's on the floor. He couldn't have rolled off the couch, because he's on his back on both the ouch and the floor, and we don't hear him hit the floor.
Other mistake: When the man at the start is thrown through the room and his head hits the wall, the picture briefly freezes.
Factual error: When Bond is in the trunk of the car, being taken out of the lower level of the White House, a trap door opens out into the desert. There are two Saguaro cacti shown, one on the trap door and one in the distance. Saguaro cacti do not grow wild any where near Las Vegas.
Chosen answer: Blofeld and Spectre has enough diamonds for the laser he is building to hold the Earth hostage. In typical Spectre fashion, since he is finished with the operation, he wants to leave no loose ends that could tie Spectre into the mix.
Zwn Annwn