Jack's the Boy is a 1932 British comedy film directed by Walter Forde and starring Jack Hulbert, Cicely Courtneidge, Francis Lister and Peter Gawthorne. Its plot follows a policeman who attempts to track down a gang responsible for a smash and grab raid, thereby proving his worth to his disapproving father. It became well known for its song "The Flies Crawled Up the Window", sung by Hulbert, which was released as a record and proved a major hit.