Jack Nicholson, who?
While that Oscar-winning actor originated the role of The Joker on the big screen many years ago, Heath Ledger takes it over for next summer's Dark Knight. By the look of the photo below, the Brokeback Mountain star can play both gay and homicidal quite well.
Also scheduled to appear in the movie? Christian Bale as Batman and Maggie Gyllenhall, who takes over the role of Rachel Dawes from Katie Holmes.
We'd like to see Dick Cheney portray The Penguin.