'The Dark Knight,' for me, has the same problem that every other 'Batman' movie has. It's not about Batman. I think Heath Ledger is just phenomenal and the character of the Joker is beautifully written. He has a particular philosophy that he carries throughout the movie. He has one of the best bad guy schemes.
I was not popular in school, and I was definitely not a ladies' man. And I had a very painful adolescence, because it was all very strange to me. It wasn't like I got beat up, but the humiliation and isolation, and the existential 'God, I exist, and nobody cares' of being a teenager were extremely pronounced for me.