Other mistake: Early in the film Sgt Wilkins goes into Inspector Mills' office leaving Thurston dealing with the public at the counter. When Wilkins comes out of the office, exactly the same dialogue is repeated by Thurston and a man making a complaint about dangerous driving .
Carry On, Constable (1960)
1 other mistake - chronological order
Directed by: Gerald Thomas
Starring: Kenneth Williams, Sid James, Kenneth Connor, Eric Barker
Genres: Comedy
Continuity mistake: When Sgt. Wilkins and P.C. Thurston go on patrol in the police car, it's registration number varies between scenes, from 892FPC to UUV133. (00:38:15 - 00:45:40)
Trivia: When Charles Hawtrey gets out of bed and steps in his chamber pot it starts rolling around on the floor and he tells it to be quiet. He was not meant to say it, he just improvised.