A fan film is a film or video inspired by a film, television program, comic book or a similar source, created by fans rather than by the source's copyright holders or creators. Fan filmmakers have traditionally been amateurs, but some of the more notable films have actually been produced by professional filmmakers as film school class projects or as demonstration reels. Fan films vary tremendously in quality, as well as in length, from short faux-teaser trailers for non-existent motion pictures to full-length motion pictures. Fan films are also examples of fan labor and the remix culture. Closely related concepts are Fandubs, Fansubs and Vidding which are reworks of fans on already released film material.
The earliest known fan film is Anderson 'Our Gang, which was produced in 1926 by a pair of itinerant filmmakers. Shot in Anderson, South Carolina, the short is based on the Our Gang film series; the only known copy resides in the University of South Carolina's Newsfilm Library. Various amateur filmmakers created their own fan films throughout the ensuing decades, including a teenaged Hugh Hefner, but the technology required to make fan films was a limiting factor until relatively recently. In the 1960s UCLA film student Don Glut filmed a series of short black and white "underground films", based on adventure and comic book characters from 1940s and 1950s motion picture serials. Around the same time, artist Andy Warhol produced a film called Batman Dracula which could be described as a fan film. But it wasn't until the 1970s that the popularization of science fiction conventions allowed fans to show their films to the wider fan community.
In the 1960s, 1970s, and 1980s, there were many unofficial foreign remakes of American films that today may be considered fan films, such as Süpermenler (Superman), 3 Dev Adam (Spider-Man), Mahakaal (A Nightmare on Elm Street), and Dünyayı Kurtaran Adam (Star Wars).