Saturday Night Fever is one of those movies that comes along and seems to change the cultural temperature in a flash. After the movie's release in 1977, disco ruled the dance floors, and a blow-dried member of a TV-sitcom ensemble became the hottest star in the country. For all that, the story is conventional: a 19-year-old Italian-American from Brooklyn, Tony Manero (John Travolta), works in a humble paint store and lives with his family. After dark, he becomes the polyester-clad stallion of the local nightclub; Tony's brother, a priest, observes that when Tony hits the dance floor, the crowd parts like the Red Sea before Moses. Director John Badham captures the electric connection between music and dance, and also the desperation that lies beneath Tony's ambitions to break out of his limited world. The soundtrack, which spawned a massively successful album, is dominated by the disco classics of the Bee Gees, including "Staying Alive" (Travolta's theme during the strutting opening) and "Night Fever." The Oscar-nominated Travolta, plucked from the cast of Welcome Back, Kotter, for his first starring role, is incandescent and unbelievably confident, and his dancing is terrific. Oh, and the white suit rules. (Note: Saturday Night Fever was cut from its original R-rated version after its initial release in order to obtain a PG rating. The PG version is 11 minutes shorter and is missing parts of scenes and some street talk. Both versions are available on video.) --Robert Horton