Cinema Science

This is from AICN regarding Heath Ledger's status of work on The Dark Knight.

Hey folks, Harry here... There's a lot of rumors swirling around right now in regards to Heath and where his involvement with THE DARK KNIGHT was. I got it confirmed from a source involved in Post-Production on THE DARK KNIGHT. Heath's post work was complete. He had indeed finished it, as to not interfere with the production of the film he was doing with Gilliam. We're now working to find out what's going to happen there. The last known photo of Heath was as a clown in that film. Will Terry re-cast? What will happen? We'll try to find out for all of you. But there will be no-dubbing on Heath in THE DARK KNIGHT - his performance was finished.

Also, I guess this is the photo mentioned above, the last one of Ledger.