I used to be a huge fan of Heavy Metal magazine growing up, and I was exposed to Cobalt there and fell in love with the character and the world. I've tried to track it down and pursue it myself to make a movie out of it. Also I felt like the thing that's cool about Cobalt is it does have a culty kind of underground quality to it that I really like.

I always say, I'm certain I changed 'Watchmen' less than the Coen brothers changed 'No Country for Old Men.' I'm certain of it. But you don't hear the Cormac McCarthy fans, like, up in arms about it. They should be. It's like an amazing Pulitzer Prize-winning book.

I think that, for me, Superman just seemed to make a lot of sense to me. After doing 'Watchmen,' it was - you know that thing, you've got to know the rules before you can break them? There was something about that in making 'Watchmen.'

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 guess for me - in the TV commercial world I was known for shooting locations, beautiful landscapes and things like that - so, it's interesting.

I'd say the purest experience for the movie is not to have read the book because I think when you've read the book you're just ticking off boxes. I think that after you see the movie, reading the book is a cool thing. I always say the movie's not meant to replace the book. That's ridiculous. I'm a huge fan of the book.

It's more like Christmas, you know, when you get a shot in that looks great and it's exactly what you want. It's a great feeling, and there's nothing like it.