The Imaginarium of Doctor Parnassus is a 2009 fantasy film directed by Terry Gilliam and written by Gilliam and Charles McKeown. The film follows a travelling theatre troupe whose leader, having made a bet with the Devil, takes audience members through a magical mirror to explore their imaginations and present them with a choice between self-fulfilling enlightenment or gratifying ignorance.

Heath Ledger, Christopher Plummer, Andrew Garfield, Lily Cole, Verne Troyer, and Tom Waits star in the film, though Ledger’s death one-third of the way through filming caused production to be temporarily suspended. Ledger’s role was recast with Johnny Depp, Jude Law, and Colin Farrell portraying transformations of Ledger’s character as he travels through a dream world; the film marks Ledger’s final film performance, and was even dedicated to him and co-producer William Vince.

The film made its world premiere during the 62nd Cannes Film Festival, out of competition. The film, which cost $30 million to make, grossed more than $60 million in its worldwide theatrical release.

The Imaginarium of Doctor Parnassus was nominated for two Academy Awards in the categories Best Art Direction (art directed by Dave Warren and Anastasia Masaro, and set decorated by Caroline Smith; lost to Avatar) and Best Costume Design (costumes designed by Monique Prudhomme; lost to The Young Victoria).