John Travolta, Barry Gibb and the Saturday Night Fever cast and crew tell the story behind the mega-hit film. Bruno Tonioli goes through the disco steps that made movie history.

Saturday Night Fever: The Ultimate Disco Movie

A young man with a troubled past seeks out his biological mother. His world is turned upside down upon discovering that she is developmentally disabled. Unable to work through this new discovery on his own, the man's wife takes matters into her own hands forcing her husband to face the truth and heal the past.