The Sundance Film Festival is a film festival that takes place annually in the state of Utah, in the United States. It is the largest independent cinema festival in the U.S. Held in January in Park City, Salt Lake City, and Ogden, as well as the Sundance Resort, the festival is the premier showcase for new work from American and international independent filmmakers. The festival comprises competitive sections for American and international dramatic and documentary films, both feature-length films and short films, and a group of non-competitive showcase sections, including the New Frontier, Spectrum, and Park City @ Midnight.

Sundance began in Salt Lake City in 1978 as the Utah/US Film Festival in an effort to attract more filmmakers to Utah. Founded by Sterling Van Wagenen (then head of Wildwood, Robert Redford's company), John Earle and Cirina Hampton Catania (both serving on the Utah Film Commission at the time).

With Chairperson Robert Redford, and the help of Governor Scott Matheson of Utah, the goal of the festival was to showcase strictly American-made films, highlight what the potential of independent film could be and to increase visibility for filmmaking in Utah. At the time, the main focus of the event was to conduct a competition for independent American films, present a series of retrospective films and filmmaker panel discussions and to celebrate the Frank Capra Award (given the first year to Jimmy Stewart); it highlighted the work of "regional" filmmakers who worked outside the Hollywood system.