Hair is a 1979 musical anti-war comedy-drama film directed by Miloš Forman and adapted for the screen by Michael Weller, based on the 1968 Broadway musical Hair: The American Tribal Love-Rock Musical. Set against the backdrop of the hippie counterculture of the Vietnam era, the film focuses on a Vietnam War draftee who meets and befriends a "tribe" of hippies while en route to the army induction center. The hippies and their leader introduce him to marijuana, LSD, and their environment of unorthodox relationships and draft evasion.

Jan Tomáš "Miloš" Forman was a Czech-American film director, screenwriter, actor, and professor who rose to fame in his native Czechoslovakia before emigrating to the United States in 1968. Throughout Forman's career he won two Academy Awards, a BAFTA Award, three Golden Globe Awards, a Golden Bear, a César Award, and the Czech Lion.