Postman's Knock is a 1962 British comedy film directed by Robert Lynn starring Spike Milligan, Barbara Shelley, John Wood and Warren Mitchell.

[1][2] The screenplay, by John Briley and Jack Trevor Story, concerns a country postman who is transferred to London, where he manages to foil a major robbery.

This leads him to a meeting with the staff psychiatrist, and then to Jean, an ambitious art student, and the pair find themselves the main suspects in a mail theft ring, with the police and post office officials hot on their heels.

[4] The Monthly Film Bulletin wrote: "One or two promising satirical ideas have been buried under layers of haphazard, tedious slapstick.

The film is written and directed with the minimum of invention, and Spike Milligan seems submerged beneath the general air of mediocrity.