Directed by: Gerald Thomas
Starring: Kenneth Williams, Sid James, Charles Hawtrey, Sidney James, Roy Castle
Revealing mistake: Whilst imprisoned by the Burpers, Brother Belcher calls to one of the guards. The guard's supposed to have many missing teeth, but they have just been very obviously blacked to simulate this (a very common film or theatre trick, but usually not this obvious).
Revealing mistake: Look at the table when the fakir's "severed" head is revealed during dinner at the end. It noticeably wobbles and moves about when he talks, showing his body is hidden underneath.
Continuity mistake: During the battle towards the end of the film, Sir Sidney Ruff-Diamond tells Captain Keene to line up his men and you can see that the collar on Keene's uniform is fastened. In the next shot, Keene is fastening up his collar again.
Brother Belcher: Don't worry - we'll save you some Strawberry Mousse.
Trivia: The Khyber Pass is actually Snowdonia in Wales. All of the rest of the production was filmed at Pinewood Studios in London.