In Sir Michael Caine's opinion, Heath Ledger beat the odds and topped Jack Nicholson's Joker from Batman (1989): “Jack was like a clown figure, benign but wicked, maybe a killer old uncle. He could be funny and make you laugh. Heath’s gone in a completely different direction to Jack, he’s like a really scary psychopath. He’s a lovely guy and his Joker is going to be a hell of a revelation in this picture.” Caine bases this belief on a scene where the Joker pays a visit to Bruce Wayne’s penthouse. He’d never met Ledger before, so when Ledger arrived and performed he gave Caine such a fright he forgot his lines.
During the scene where the Joker crashes Bruce Wayne’s party for Harvey, when he first appears in the elevator Alfred was meant to have some lines, however this was the first time Michael Caine had seen Heath Ledger with the Joker make up on, you can even see the shocked expression on his face as the Joker walks past him.
This is freaking awesome!!!