You never quite know what you're going to come back to and figure out how to make it work. You never quite know where that desire to finish something, or return to something in a fresh way, is going to come from. Every time I finished a film and went back and looked at it, I had changed as a person.

Yes, to me that's one of the most compelling fears in film noir and the psychological thriller genre - that fear of conspiracy. It's definitely something that I have a fear of - not being in control of your own life. I think that's something people can relate to, and those genres are most successful when they derive the material from genuine fears that people have.

It's very important that a film that intends to play tricks on the audience... has to play fair with the audience. For me, any time you're going to have a reveal in the film, it's essential that it have been shown to the audience as much as possible. What that means is that some people are going to figure it out very early on. Other people not til the end. Everybody watches the film differently.

In Hollywood there's a great openness, almost a voracious appetite for new people. In England there's a great suspicion of the new. In cultural terms, that can be a good thing, but when you're trying to break into the film industry, it's definitely a bad thing.

It's difficult to keep anything fresh for an audience these days. With technology being what it is people seem to know everything there is to know about a film before you've even made it.

Particularly, the actors, to have analyzed the script in great detail from the point of view of their specific character. So that they have a handle on exactly where the character is in the chronology of things. In that sense the actors become your best check on the logic of the piece, and the way in which it all fits together. They become essential collaborators. The main thing is you have to work with very smart actors.

To me, any kind of filmmaking that's reactive is not going to be as good as something more inventive and original.