There's a sadness to the human condition that I think music is good for. It gives a counterpoint to the visual beauty, and adds depth to pictures that they wouldn't have if the music wasn't there.

In discussing the process with the actors, I made it clear to them that they could improvise but that the sum total of their improvisation needed to impart certain plot points, and schematic material.

In a way, the history of jazz's development is a small mirror of classical music's development through the centuries. Now jazz is a living form of original music, while classical music has gotten to the end of its cycle in terms of exploring its form.

I would certainly say that films like Time Code and the Loss of Sexual Innocence were far more rewarding to me in terms of being able to move forward as a filmmaker.

It's difficult working with very rich actors, because inevitably they become a little spoilt, and the managers and agents tend to control things more than is healthy.

I like to work my camera as if it were a musical instrument.

I play piano and trumpet. I studied classical guitar.

Obviously, I try to make the films work for an audience. That's the main point of making a film, and in retrospect, one can see that certain films, let's say Leaving Las Vegas, demonstrated its own success.

But I don't have such a strong desire to need to get away from filmmaking.

I am intrigued enough to want to continue, and also to try and work with companies like Sony on modifying the cameras and making them more user-friendly and efficient.

Each film is different. Time Code was very quick - a matter of months. Miss Julie has been on my shelf as a script for some seven or eight years. But then the shooting process was very quick - 16 days.

I started using film as part of live theatre performance - what used to be called performance art - and I became intrigued by film.

When I do the music, I make the musicians listen to what's happening in the film. That way they treat the dialogue as if it was a singer.