Revealing mistake: When Nick-Nack pulls the money from the dead gentleman whom Scaramanga kills in the game before the opening credits, you can see a "wax figure" of James Bond pointing his gun. However, he is moving and not standing completely still like a wax character or mannequin would. (00:07:55)
Plot hole: Scaramanga kills his boss Hai Fat in cold blood inside Hai Fat's massive estate in Thailand, but even after Hai Fat's attache runs inside and sees Hai Fat dead, murdered by Scaramanga, the attache and Hai Fat's security personnel in the heavily guarded complex permit Scaramanga to leave without being apprehended for the murder of their boss with Scaramanga glibly stating "Mr Fat has just resigned. I'm the new chairman of the board" as he walks out of the room untouched. (01:04:50 - 01:05:25)
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: Bond tells the kid he'll pay him 20,000 bahts if he manages to start the engine, which he does. Shot changes and the kid spreads his arms wide and smiles with joy. Back to the wide shot and his arms are closer together, and he has a worried look. (01:00:30)
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.
Chosen answer: No, it was the actor.