Clips from The Dark Knight, with Heath Ledger playing The Joker
Heath Ledger's co-stars have paid tribute to him at the world premiere of the new Batman film in New York.
Ledger's performance as The Joker in The Dark Knight has prompted speculation that he may win a posthumous Oscar for the role.
"It's the best performance of a villain I have seen," said co-star Sir Michael Caine, who walked down a black carpet.
The movie is dedicated to the actor, who died aged 28 following an accidental drug overdose in January.
"My feeling is that he will get a nomination, I would be very surprised if he didn't get the Oscar - he has my vote anyway," said Sir Michael.
Gary Oldman, who plays Lieutenant Jim Gordon in the film, said: "I haven't seen a villain like this, or a bad guy like this, since Dennis Hopper played Frank Booth in Blue Velvet - this out-scares Hannibal Lecter."
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.