Revealing mistake: During the car chase, Bond weaves through a car park, and a police car can't make the turns, sliding into a wall. The wall's covered in one specific point by what looks like a large pale wooden cover, which the police car just happens to slam into exactly.
Factual error: When Mr. Wint and Mr. Kid assassinate the doctor in the South African desert, they use a scorpion. Scorpions are poisonous, but the sting is more like a bee's, and woudn't kill a healthy adult.
Revealing mistake: Blofeld is played by an actor that is not bald (Blofeld was bald in 2 previous episodes). He is also played by Charles Gray, who played the part of one of the good guys in You Only Live Twice. [Not really a mistake, given that Blofeld doesn't have to conform to certain physical characteristics. However, an actor playing a good guy then a bad guy over the space of two films rankles a bit...]
Factual error: When Bond is inside the oil rig, the shots switch from the satellite control room to the satellite itself orbiting. When the satellite fires at the underground missile, it's orbit direction reverses. Then, when it fires at the Russian sub and the Chinese military base, it stops before it fires. This is impossible, as Newtons 3rd law states that for every action there is an equal and opposite reaction. For the satellite to reverse or stop, boosters would be needed at the front of the satellite (of which there aren't any) to counter it's speed. And even if they were there, the direction change and stop wouldn't be as sharp as the movie shows.
Continuity mistake: In the opening scene Bond smashes the giant light on top of Blofield and he falls across the table, but in the very next scene when Bond fastens the strap, Blofield is lying horizontal to it. This is a continuous scene.
Revealing mistake: When Saxby is shot, he has an instant, pre-dried blood splatter on his shirt.
Factual error: The satellite uses a laser as its weapon, which can be only as powerful as its root energy source. It obviously doesn't have a nuclear reactor large enough to yield that much power, and it can't be solar power, since the collecting area of the dish is orders of magnitude too small to provide power at a level sufficient to lay waste to whole submarines and missile installations.
Continuity mistake: When the policemen are removing the body of Mrs. Whistler from the chanel in Amsterdam, one of them holds her by the bottom of her coat but the shot later, he holds her higher.
Audio problem: In the final scene, Mr Wint and Mr Kid bring in a dinner trolley. When Mr Kid places the desserts top over the bomb, we can hear the timer ticking. Yet, when the dessert is thrown and the bomb is revealed, the ticking cannot be heard.
Continuity mistake: The diamonds weigh 50,000 carats - which is 10 kg. Nevertheless the toy dog is several times lifted by different persons by only one hand (for example when it is picked down from the shelf in the Circus). They must have incredibly strong wrists.
Continuity mistake: At one part Bond is talking on the phone. He is wearing a pink tie that goes to the second button on his shirt. Then in the next scene before he meets up with Thumper, his tie is longer.
Continuity mistake: When Bond releases the red weather balloon from the oil rig and it is spotted by the guys in the helicopter you can see a desert/land background behind the helicopter despite it supposedly flying over the sea close to the oil rig.
Continuity mistake: At the end of the film, when Ms. Case is on Blofeld's oil rig in the control room, her butt crack is seen at the top of her bikini. A shot later, it is hidden.
Plot hole: Other than giving Bond and Whyte the idea that Blofeld must be hiding out on the oil rig platform, there's no reason as far as Blofeld is concerned to have the oil rig on the map in the penthouse. Nobody other than Blofeld or Whyte knew about the map until Bond enter the penthouse, so it made no sense for Blofeld to have Baja, CA on the map.
Plot hole: When Bond arrives at the oil rig he is in a silver sphere with no windows, but he somehow knows which direction to go in. Not only that, the parachutes completely disappear.
Continuity mistake: When Bond arrives at Tiffany's home in Amsterdam, he rings her doorbell. It's shown that she's living on the 4th floor (T. Case), but through the speaker-system she tells Bond to come upstairs to the 3rd floor.
Suggested correction: Although her outside indicator does say "4", it's possible that unit 4 could be located on the 3rd floor.
What we in the US call the second floor is the first floor in Europe. So a US fourth floor is a European third floor.
Definitely not everywhere in Europe. In the Nordic countries, for example, the first floor's the first floor.
True, but this scene takes place in the Netherlands where floors are numbered Ground, First, Second etc. So, not a Nordic country.
Visible crew/equipment: When M. Franks enters the customs, you can see the reflection of the crew on the window.
Revealing mistake: When Bond wakes up after being buried in the tunnel, there's light coming from everywhere and shining on the walls; yet, there's no direct light coming in from anywhere, nor artificial light sources on the walls.
Continuity mistake: When Mr. Kidd tries to kill James with the flaming shish-kabobs he is wearing gloves, which weren't there immediatly before.
Continuity mistake: As the oil rig is attacked, a large chopper and a small one are blown to bits. There were only two large ones but the one that was blown up briefly reappears as the choppers do a U-turn.
