Audio problem: After Frank has torn the lino by moving a bed, he tries to neaten it up only to tear it more. The sound effect is not in line with the tearing of the lino.
Some Mothers do 'Ave 'Em (1973)
1 audio problem - chronological order
Starring: Michael Crawford, Jane Hylton, Michele Dotrice, Jessica Forte
Genres: Comedy
Revealing mistake: When Frank is the pixie in Santa's grotto, a young boy fires something at Frank from his catapult. Although Frank reacts as being hit, the boy doesn't actually fire anything at all.
Frank: My father was in the battle of Britain, he was shot down seven times. I wanna be just like him.
Trivia: Michael Crawford was the producers' third choice for the role of Frank Spencer. The part had been previously turned down by both Norman Wisdom and Ronnie Barker.