"I was never a giant comic book fan, but I've always loved the image of Batman and the Joker. The reason I've never been a comic book fan – and I think it started when I was a child – is because I could never tell which box I was supposed to read. I don't know if it was dyslexia or whatever, but that's why I loved "The Killing Joke", because for the first time I could tell which one to read. It's my favorite. It's the first comic I've ever loved. And the success of those graphic novels made our ideas more acceptable."