What happened with Final Destination was that the movie was in post-production for a long time and I think they changed a lot of the deaths, so a lot of those things were last-minute additions. Everything we shot is in the movie and it's all been designed. We didn't change anything. It's been a year of making those things happen, exactly as we had pictured them.

There's something very terrifying about that and very primal about it. It's my belief that what horror does for people is that it provides that primal fear that, when we were wild hunter-gatherers, we had as part of our natural lives because maybe something was trying to hunt and gather you as well. We don't have that anymore in life and that's one of the things that horror films and action films provide for us.

Death Race was a very modern action movie and it used all of those modern action techniques with lots of hand-held camera, lots of punchy zooms, and lots of quick movements and quick cuts. In 3D, I didn't want to do that anymore.

Every movie is a commitment of a year or a year and a half. Commercials are much faster than that because they're much more contained. You can get in and out really fast, and you do a piece of work the you see the end result very quickly.

Interestingly it's when you come to the comedy, that's where a lot of the discussion is. It's like ten people sitting around talking about what is funny. "Is that funny? Is that funnier than that? Is this slightly funnier than this?" I guess that's what it's like when you're making a comedy movie as well, you just have to sit around talking seriously about the nature of comedy.

My approach has always been to put 100% into the movie I'm making right now. I think sometimes filmmakers put too much thought into the grand franchise they're going to build. And guess what? If the first movie doesn't work there is no franchise, so I'm always concentrated on making the best, best possible movie right now.

The cameras were a little twitchy, and you'd get less footage and less set-ups every day. The interesting thing about it was that you just composed images in a completely different way because we had big 3D monitors on set, and you'd wear the glasses and see the image in 3D.