1. 'Rocky Horror Picture Show' (1975)
No film – musical, or otherwise – has spawned the cult following Rocky Horror Picture Show has since its release. Fans continue to dress up and attend packed, interactive screenings across the world, singing along to the rock-leaning tunes attached to the deliciously weird sci-fi horror tale. In the film, vanilla couple Brad and Janet (Barry Bostwick and Susan Sarandon) have a vehicle malfunction on a rainy night. When they happen upon the home of sweet transvestite Dr. Frank-N-Furter (Tim Curry, at his finest), their night, and their lives, begin to go awry.