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.

For whatever reason I was always obsessed with the potential of humanity's physicality. Especially since we grew up with such a non-physical philosophy.

The difference between 'Watchmen' and a normal comic book is this: With 'Batman's Gotham City,' you are transported to another world where that superhero makes sense; 'Watchmen' comes at it in a different way, it almost superimposes its heroes on your world, which then changes how you view your world through its prism.

Probably the hardest thing to do was the beginning of the movie ["300"], I think, when we were in Sparta and all that - just getting in the groove.

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.

I always say 300 is a sci-fi movie as much as anything. It's like that could be another planet. It doesn't have to be earth necessarily. That's like when people get so wrapped up in the politics of 300 I always go, "By the way, that's a sci-fi movie. It's not really a historical film."

We can't just go, like, oh that'd be cool then not do it. So it's one of those weird things. You gain all these things on your journey. You get smarter. It's interesting how you are who you are in high school in a lot of ways. When I look at my friends, I feel no different about them than I did when I was in high school. I mean that in a great way. They've taken on a micro scale what they were doing and making it bigger.