Today, everything about this movie feels iconic: The White Suit (bought by the film's No. 1 fan, the late critic Gene Siskel), the Bee Gees' chart-topping songs and Travolta's dance-floor pose, copied (and sent up) countless times by "Saturday Night Live" "Airplane!," "Dancing With the Stars" and "Glee."
The film grossed $94 million in the U.S. alone, and racked up $237 million worldwide. The soundtrack ruled the charts for 24 straight weeks and is still ranked as one of the all-time bestsellers. (Admit it, every time you hear, "Stayin' Alive," you feel like strutting.)
To celebrate the film's 35th anniversary, here's what the stars are up to now: