Saturday Night Fever is a 1977 film starring John Travolta as Tony Manero, an immature young man whose weekends are spent visiting a local Brooklyn discothèque; Karen Lynn Gorney as his dance partner and eventual girlfriend, and Donna Pescow as Tony's former dance partner and girlfriend. While in the disco, Tony is the king. His care-free youth and weekend dancing help him to temporarily forget the reality of his life: a dead-end job, clashes with his unsupportive and squabbling parents, racial tensions in the local community, and his associations with a gang of macho friends.
A huge commercial success, the movie significantly helped to popularize disco music around the world and made Travolta, already well known from his role on TV's Welcome Back, Kotter, a household name. The Saturday Night Fever soundtrack, featuring disco songs by the Bee Gees, is the second best selling soundtrack of all time. The film is the first example of cross-media marketing, with the tie-in soundtrack's single being used to help promote the film before its release and the film popularizing the entire soundtrack after its release. The film also showcased aspects of the music, the dancing, and the subculture surrounding the disco era: symphony-orchestrated melodies, haute-couture styles of clothing, pre AIDS sexual promiscuity, and graceful choreography.