Revealing mistake: Scaramanga's jet-car fires up its roof-mounted jet engine and begins to roll forward in the hangar. Despite the fact that we hear the turbine whining loudly at increasing RPMs, the flimsy tan sheeting hanging in front of the jet intake is not sucked in, or even disturbed at all by the air flow. (01:29:05)
Continuity mistake: When Scaramanga is talking about the laser gun to Bond, the water is next to his airplane but when he shoots on it, the level is lower. There's only little waves so it's impossible to change that fast. (01:36:55)
Character mistake: James Bond states that the man that fell in the liquid helium would raise the temperature. Since humans have a body temperature of only 98.6 degrees Fahrenheit, falling into a tank of liquid helium at -456 degrees would bring his body down to the same temperature as the surrounding helium in no more than five seconds. (01:49:20)
Suggested correction: The human body is mostly water which has a high specific heat capacity, much higher than liquid helium, so the amount of heat absorbed by the helium in order to cool the body to near absolute zero would easily raise its temperature well above absolute zero.
Revealing mistake: During the fight scene in the belly dancer's room, Bond spins the bald guy around to avoid being hit by a chair. When the bald guy gets hit in the back with the chair, you can see a large rectangle of padding under his jacket.
Continuity mistake: During the chase scene with the police, Bond swerves past a driver in a dark green 1956 Plymouth Savoy. As the police cars pass the Plymouth, the scene cuts to an inside shot of the car with the driver yelling. Then, the driver loses control of the car and rolls it over. The car that crashes is a green 1955 Chevrolet 210 series, not the 1956 Plymouth.
Plot hole: When Bond and Scaramanga are duelling, Bond has no tie or jacket on. After Bond drops his gun and gives his hiding place away, he somehow has the time to not only crawl back onto the staging but to move the wax replica of himself and also to put on the dummy's jacket and necktie.
Factual error: The film's car chase takes place in Thailand, where vehicles are right-hand drive (RHD) and travel on the left side of the road (as in England and Australia). Yet the American Motors (AMC) cars in the chase - the red Hornet X, gold Matador coupe, and several Matador sedan police cars, all 1974 models - are all left-hand drive cars. Scaramanga's car can be excused as something he specifically imported for himself, but the Hornet is 'borrowed' from a fictitious AMC dealership (none existed outside the USA) and the small amount of AMC vehicles sold outside the USA were shipped disassembled to various companies that reassembled them and sold them under their own company names (AMI in Australia, Karmann in Germany, etc). Companies such as these, in RHD nations, had to modify the cars to RHD themselves in order to be allowed to sell them 'locally'. So the Hornet would have been at a non-AMC dealership and would have been RHD, as would the fleet of police cars. Naturally, this 'error' was created by AMC's promotional deal with the filmmakers to use AMC cars in order to improve US sales to the US filmgoers.
Continuity mistake: The red AMC Hornet X that Bond steals from the car dealership alternately does, and does not, have an interior rear-view mirror mounted on the windshield.
Continuity mistake: At the start, when the gangster is preparing for the showdown with Scaramanga, there is a rope hanging with a knot in it, however, when Scaramanga comes in the knot in the rope has been tied.
Other mistake: At the end when Bond returns to the bedroom after the glass bottle fight with Nik Nak he says "hope you got all the glass out of the bed" but he just walked across the room in bare feet without a care in the world, which was completely covered in broken glass. Goodnight didn't have enough time to clean this up aswell in the time given.
Revealing mistake: During the intro, the first Bond "dummy" and the second one when Scaramanga fires are different. They're either real and dummy or both dummies, but the first one has a concentrated look, and the second one has a worried look.
Factual error: Q says the golden bullets are caliber 4.2mm. When we see them they are much larger - more like 9-10mm. 4.2mm is like a pellet from an air pistol.
Audio problem: The voice of Lt. Hip, Bond's assistant in Asia (played by Soon-Tek Oh) changes during the film, usually depending on whether it's an inside or outside scene. In all the outside scenes, his voice is much higher and shriller, so it was probably dubbed by a different actor.
Audio problem: In the teaser we see the hitman load his gun when he gets ready to kill Scaramanga. When Scaramanga walks into the room, the hitman aims for him. The gun makes a loading sound. Upon the hitman's arrival to the room he racks a bullet into the chamber therefore no other action would be required to make the gun ready to fire. A loaded gun does not make a sound when you aim it - and why would he have unloaded the gun while waiting for his victim? When you load the gun, the hammer is back and the gun is ready to fire. No further actions are necessary. And a professional hitman does not wait to turn off the safety on his gun until his victim has arrived.
Continuity mistake: When Bond is picked up by the Sumo wrestler in the garden Bond is upright hitting the wrestler. When they cut to the wrestler front (Bonds backside) Bond is already down over the wrestler's shoulder doing something to the wrestlers backside. They cut back to Bond front side and he is still up and reacting in pain and then bends over the wrestler's shoulder.
Revealing mistake: At the end of the film where Nik Nak is throwing unopened bottles at Bond from the junk's bar area not one of them appear to have any liquid in them. Bond never got wet and neither did the sheets on the bed or the floor.
Continuity mistake: When the Hong Kong police are chasing Bond, they use three black and white AMC Matador sedans. When they arrive at Scaramanga's hanger, we find that two of the three Matador police cars have been resprayed in red.
Other mistake: Ms. Goodnight was surprised to learn that the car had become flying. There is no way she wouldn't have heard the jet engines and felt the take-off. Also the noise in car's boot must have been loud, but she talked into the walkie-talkie and it came out fine.
Continuity mistake: During the car chase scene Bond overtakes a blue car partially off-road. We see Bond's car almost getting side-by-side by the blue car before we're getting an in-car shot of Bond's car being just behind the blue one.
Continuity mistake: When Bond goes into the belly dancer's dressing room, at first she does not have the golden bullet in her belly button, then she does.
