My aesthetic is probably closer to a 15-year-old's than my dad's, but I get his conviction.

The challenge with 'Watchmen' is making sure that the ideas that were in the book got into the movie. That was my biggest stretch. I wanted people to watch the movie and get it. It's one of those things where, over time, it has happened more.

You know it has all the kind of fun stuff. It has the countermeasures - we always talk about the countermeasures because people are like, "What the heck is countermeasures?" You know if I shot a missile at it, flares would pop out of those holes and stop the missile from hitting it.

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.

[Writing something original from scratch], the initial process is way different. But once it exists and you start to actually work on making it real, then the approach is kind of the same, for me anyways.

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.

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.