
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.

Factual error: As Kennith Williams and Bernard Bresslaw approach a notice board on horseback, you can blatently see the road they are on. You can even see the white hazard lines on the road. Apart from anything else, Tarmac wasn't even invented until 1901 yet this episode is set in 1750. (00:12:30)

Factual error: As the airship approaches Astragard it's headed due North; yet the distant clouds are backlit by the Sun. The Sun should be to the South.

Factual error: The film is set in the 1920's. When the policeman appears towards the end of the film on his helmet is a post-1952 helmet plate with the crown of Queen Elizabeth II.