Trivia: The first film in the "Carry On" series. It had not originally been planned as the start of a movie series, but after its success at the box-office, producer Peter Rogers and director Gerald Thomas set about a further project with "Carry On Nurse" (1959), which was enormously successful. The "Carry On" series of films evolved after that.
Trivia: Martin Wyldeck plays Mr. Sage, the father of Charlie Sage (Bob Monkhouse). In real life, Wyldeck was only fourteen years older than Monkhouse.
Gun Sergeant: Looks like you were listening.
Sage: I wasn't listening. I used to work in the factory where they make these things.