Great sites
Mistakes
The same group of people wearing the same clothes, including a dancer and bartender, are shown sitting around a bar on two different disco nights. On the first disco night we see them when Tony leaves the bar to go outside after being informed by Joey, what Double J is doing in the car. We see these people again at the start of the second disco night, both nights when we see them, the song "If I Can't Have You" is being played. See more...
Saturday Night Fever (1977) - 1 trivia entry
Directed by John Badham, starring John Travolta (add more)