You have to offer sort of an evolution visually and do things like you've never seen before, like a fight between two men in a toilet on an airplane which was very exciting.

Now that everyone's shooting digital they want the anamorphic to soften the look. You know, to make it more filmic.

Camera's are cheap. It's the lenses that are expensive.

I think that everything changes when it goes through the Mac; it's cheap. I think people then don't pay too much importance to the take, if you can do 40 takes.

I think it's very interesting for a director that enjoys thrillers and mysteries like I do to have the challenge to do that.

Shooting digitally would not have been easier. Cameras are the same size. I always shoot on film unless I have a reason not to, which I haven't had yet.

I wanted to move away from the disaster airplane movies that we have seen in the past and do something that was more mysterious, and delay until the end the resolution of the mystery, and then have to deal with the plane itself.