Sidewalks of London, also known as St Martin's Lane, London After Dark, and Partners of the Night, is a 1938 British black-and-white comedy drama starring Charles Laughton as a busker or street entertainer who teams up with a talented pickpocket, played by Vivien Leigh. The film co-stars Rex Harrison and Tyrone Guthrie in a rare acting appearance. It also features Ronald Shiner as the barman (uncredited). It was produced by Mayflower Pictures Corporation.