Continuity mistake: The yellow getaway car crashes on the waste land then rolls over. After it has come to rest, the mounds of earth used to roll the car have disappeared. Also, the car's windscreen disappears. Just before the crash, on an inside shot, it is there, but on the outside shots it has disappeared.
Continuity mistake: In the scene where Bette Davis has lost her shawl there is a shot of her and Maggie Smith from far away. They talk about the time and in the background Angela Lansbury is drinking. She puts down her glass and leans her head on her hand. Then the shot changes to a close-up of Bette Davis and Maggie Smith and you can see Angela Lansbury in the background, with the glass in her hand, just about to take a drink. (00:55:05)
Continuity mistake: When Billy Lo is fighting the huge guy, he gets a footprint stamped onto his jumpsuit, the print changes size throughout the fight.
Continuity mistake: When Ryan is proving his skills with the orange Mercedes, the driver's door mirror is missing before it strikes the water valve, yet is back moments later. (00:36:25)
Continuity mistake: When Clouseau and Cato are trying to get into "Le Club Foot" they go crashing through the window of a bakery. A little later on, they go through the same hole again, yet this time there is a large undamaged wedding cake sitting there for Cato to land in. The cake couldn't have survived the first accident.
Continuity mistake: When the taxi driver sets off in pursuit of the white truck, only the driver is seen at the wheel and Robert Mitchum is not sitting in the back. In the next shot of the taxi, Robert is seen in the back of the taxi.
Continuity mistake: Marsha Mason is standing between Abe Vigoda and Vic Tayback.After a quick close-up of Peter Falk suddenly she is standing next to Peter.
Continuity mistake: Though Fausto Zoppi and Jean-Claude Moleno are to have contributed to the 'World's Most Fabulous Meal' for the Queen, neither of them ever shows up in the kitchen during the preparation of the dinner. They don't even appear until much later in the film.
Continuity mistake: When Billy is taken up to that area by the guard that tries to rape him, when the door opens to go in, there is another guard on the inside that closes the door. But after Billy kills the guard, somehow that other guard is nowhere to be found - does Billy kill both guards?
Continuity mistake: As the Prussian agents escape by carriage with Hannay after 'springing' him from police custody, you can see modern markings on the road for a car parking space.