The problem is, when you're making an animated movie, the studio has an illusion in their minds - and it's really not true - that because it's a drawing, it can be changed at any time.

I think up to this point, it's been difficult to suggest a world where Batman and Superman and Wonder Woman and others could exist in the same universe. That was one of the things I really wanted to try and get at. Not to mention, the amazing opportunity to bring those characters and have those characters tell an important story, their own story, within the confines of a film.

One of the things I think is important about 'Watchmen' is that it have resonance within cinematic pop culture as well as superhero culture.

The problem is, when you're making an animated movie, the studio has an illusion in their minds - and it's really not true - that because it's a drawing, it can be changed at any time.

The thing about 'Dark Knight' is its objective is to set Batman into your world, so that you can imagine the moral dilemmas he faces are exactly parallel to moral dilemmas that you would face in this world, today, if you were out there fighting crime dressed like a bat.

Well, Bradbury's a genius. Fahrenheit 451 is one of my favorite books of all time, and The Illustrated Man as a collection of short stories ranks up there. When you read it you realize how influential it is on so many other stories and people.

In the Making Of book ["300"] there's a guy named Victor Davis Hanson who is a a frickin genius. He's a Greek historian and we showed him the movie because I wanted him to write a forward to the Making Of book. I was a little nervous to be honest, because I wasn't sure how he'd react.