Sony won't be releasing the movie until Christmas day, but the U.S. trailer for Terry Gilliam's The Imaginarium of Doctor Parnassus , which includes Heath Ledger in his final role, hit the Internet on Wednesday. The trailer also includes scenes featuring Johnny Depp, Jude Law and Colin Farrell, who were brought in to play Ledger's character in different "transformations" in the fantasy film, after Ledger's accidental death last year. The film had its official premiere in London Wednesday (it was first shown at the Cannes Film Festival in May), and initial reaction was positive. In its report, the London Daily Telegraph' s Marc Lee observed that it ends with the credit "A film from Heath Ledger and friends." Commented Lee "And they have done him proud it's a fitting memorial."