Directed by: Gerald Thomas
Starring: Kenneth Williams, Sid James, Charles Hawtrey, Sidney James, Jim Dale
Genres: Comedy
Revealing mistake: Miss Fosdick searches in her filing cabinet, but there are no files visible only the file holders.
Revealing mistake: When we see shots of Hattie Jacques, Kenneth Williams and Charles Hawtrey during the scene when Jim Dale is tampering with the hospital fuse box, you can see the shots are taken from various other points in the film.
Continuity mistake: Gladstone has a drink in Dr Nookey's office, but he doesn't pour it. It just appears in his hand.
Gladstone Screwer: I'll call you "Sunday."
Matron: Well, I won't be in.
Trivia: Eric Rogers, who provided the music for most of the Carry On films, appears as the clarinet player at the hospital party.