The 70s themed line up of films gets incrementally camper, and the costumes get more outrageous, the later it gets. The recent Dreamgirls movie opens the bill, followed by 80s-tastic dance and drama spectacle, A Chorus Line (based on the 1970s Broadway smash and featuring a grumpy Michael Douglas as the pervy, manipulative casting director and plenty of gold lame). The Rocky Horror Picture Show brings some classic genderbending to the proceedings and you'll see in a truly gay dawn watching the Village People in Can't Stop The Music. Let's hope you're awake enough for the YMCA dancealong.

To enter the draw for a chance to win a pair of tickets to this wild night of musical madness, simply fill in your details below and we'll notify the winner by email by 5pm on Thursday 20 March.

All Night Musicals at the BFI Imax is on 29 March. The party starts with a DJ from 22:00. Films from 23:30. All night bar and free tea and coffee served between films. Interval prizes and giveaways for best costumes. Book online. Tickets £20.