We used hand-held cameras 50 years ago. It wasn't something new. Sometimes we used a tripod, or we'd have a tracking shot, and sometimes - like when a character was being chased - we used a hand-held camera because it was right for the scene. In those cases, it helped the mood; it created immediacy and a feeling for the viewer that they were in the scene and in the moment.

When I do a still picture, I'm doing it all by myself with no help. I'm designing everything. I am my own art director. I'm doing everything. I'm directing, editing, whatever.

There is something missing in a lot of digital filmmaking, something I call "poetic reality." That's something you see played out in film noir, where the technique establishes the mood.

It's all about special effects and explosions now. It leaves me just cold when I walk out of the theater. There's no heart; there's no soul. Movies used to be about people. It's as though we don't tell stories any more. The studios have to make money, and if you want to make $20 million, you have to spend $200 million.

When I was in Hungary in December I was looking at student films and I could not tell which ones were shot on film and which ones were shot digitally. I think that is because the filmmakers in Europe go to four years of film school and learn the techniques.

In Slumdog Millionaire when you are immersed in the point of view of children in the slum and the bustle of the city, the handheld camerawork is amazing. A handheld camera is perfect for establishing point-of-view and for instilling the feeling that you are there.

I think that film is still an artform and it doesn't really matter if you're using a digital camera or a film camera.