Sleeper is a 1973 American science fiction comedy film directed by and starring Woody Allen, who co-wrote it with Marshall Brickman. Parodying a dystopic future of the United States in 2173, the film involves the misadventures of the owner of a health food store who is cryogenically frozen in 1973 and defrosted 200 years later in an ineptly led police state. Contemporary politics and pop culture are satirized throughout the film, which includes tributes to the classic comedy of Buster Keaton, Harold Lloyd, and Charlie Chaplin. Many elements of notable works of science fiction are also paid tribute to, or parodied.

A comedy film is a film genre that emphasizes humor. These films are designed to amuse audiences and make them laugh. Films in this genre typically have a happy ending, with dark comedy being an exception to this rule. Comedy is one of the oldest genres in film, and it is derived from classical comedy in theatre. Some of the earliest silent films were slapstick comedies, which often relied on visual depictions, such as sight gags and pratfalls, so they could be enjoyed without requiring sound. To provide drama and excitement to silent movies, live music was played in sync with the action on the screen, on pianos, organs, and other instruments. When sound films became more prevalent during the 1920s, comedy films grew in popularity, as laughter could result from both burlesque situations but also from humorous dialogue.