You know I haven't read all of the behind the scenes/interviews on DKR, but I heard that Heath Ledger dying really fucked over Nolan's plan for the third movie, as it was supposed to feature "the final confrontation" between Batman & The Joker as it would never happen in the comics.
Also, am I the only person who thinks that whatever story they've given for Joseph Gordon Levitt for the movie is a complete red herring and he's actually going to be the Joker? I mean he does look a lot like Heath Ledger after all...
He's like "yo give me yo insurance information!" and I'm like "I didn't hit you with no car, I hit you with this mack truck I call a fist!"