I don't make films that are easy to market, unfortunately. I think that 'Pi' was the easiest one, because we had that symbol to stick up everywhere, so that was a good gimmick, and created a good mystery, and we didn't have to do huge scale.

I think I came to film-making through writing. I started to write, and people, teachers, responded to my writing.

Classical scores go up and down; they're kind of hysterical in a way. And movie scores are much more - they just drive and move forward, and they build and can't go up and down at that same speed. It's a big job to turn that into something that pushes the movie along.

I have a team, the same team of filmmakers I worked with on 'Pi' and 'Requiem'. Which is my cameraman, and my composer, and my producer. We've all worked together for a number of films.

Comic books and graphic novels are a great medium. It's incredibly underused.

I spent about a year and a half doing technical post work on 'The Fountain'. Although I do like the process, I think my favorite part of filmmaking is the actors.

My hope is that I'm going to continue to make more and more challenging work that's going to come out more and more interesting. I don't know if that will always continue to happen, but every one of my films has definitely been a progression as far as complexity of narrative, character, and plot.