Hard Luck is a 1921 American two-reel silent comedy film starring Buster Keaton, written and directed by Keaton and Edward F. Cline. It runs 22 minutes. For sixty years it was Keaton's only major lost film until it was partially reconstructed in 1987, with the critical final scene—which Keaton called the greatest laugh-getting scene of his career—still missing. It was later discovered in a Russian archive print, and now the full film is available.