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: In the opening scene when Bond pushes Blofield in the mud and we see his legs dissappear, they are obvious dummy legs and the feet have changed position.
Continuity mistake: When Bond exists the car park using the trailer as a ramp he skims the tops of several parked cars, but when the police car tries it, the car crashes into a police car that has appeared from nowhere - it hasn't just pulled up as it is driverless.
Continuity mistake: When Bond is dumped in the pipe he is lying in the middle, also when the pipe is picked up he is in the same place, but when he comes to he is now lying on a join in between two pipes.
Continuity mistake: In the opening scene Bond drops a load of mud type mixture onto the guy in the bath and we see the mixture overflowing on the sides where Bond is lying but when he gets up he is completely clean.
Continuity mistake: In the Freemont St. Chase scene, Bond passes the same casinos multiple times going the same direction without ever turning.
Revealing mistake: During the fight between Bond and Peter Franks in the elevator, if you watch carefully when Bond hits Franks' wrist with the door while he is holding the glass shard, Franks drop the glass shard before his wrist gets hit a second time.
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.
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.
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.
Continuity mistake: When Bond is being strangled by Mr Wint, he smashes a bottle of Courvoisier and throws the contents at Mr Kidd who is holding the flaming skewers. When Mr Kidd's arms are set alight, Tiffany getting up from the table, and in the next shot, she is getting up again to stand by the wall.
Continuity mistake: During the final fight scene with Bond and Mr. Wint, Bond ties a bomb on Mr. Wint's coat-tails. When Bond hoists Mr. Wint overboard in the next shot, the bomb has disappeared.
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.
Revealing mistake: When Bert Saxby is shot there is no hole in his shirt, only painted on fake blood.
Revealing mistake: When the row of missiles blow up near the end, not only are the effects bad but the amount of smoke shown is cartoonish and the missiles are still intact afterwards.
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.
Other mistake: When Bond first meets Bambi and Thumper, Thumper is lying on a rock directly in front of Bond but for some reason he doesn't see her until she introduces herself.