I'm really the addition of other peoples' imagination, quite honestly. It's what they see me as, and I'm very happy to comply. I find things are more varied that way.

By the time I came to do the final ones [Harry Potter's film], I was working on something that was massively successful. There was a huge difference in indulgence and all sorts of stuff. A very big difference in peoples' attitudes. They were very pleased with themselves. In human terms, it was quite interesting to see the difference.

Elephant Man [movie] was much more difficult physically. This had a couple of days. It was quite tricky. I had my leg strapped up behind me and I am a little older now. It was all marvelous, though. He [Bong Joon-ho] is one of the most fabulous directors in the world.

Films don't take as long as people think. 'Harry Potter,' people always used to say, 'Well, my God, do you ever get any time to yourself?' I think I did, in 'Harry Potter,' over a 12 year period I did five days. So it's not exactly exhausting.

I remember once when I told Lindsay Anderson at a party that acting was just a sophisticated way of playing cowboys and Indians he almost had a fit.

We all have our limitations.

You carry that through and adapt it to a camera lens, but you're quite right, you cannot be sure of what an audience is going to do. You don't know what's going to happen to the piece you're doing anyway. You don't know how it's going to be edited. There are a lot more unknowns in cinema. But that you have to readily accept. That's when, I think, you have to forget about intellect, to a degree. Intuition is very important when you're working with a lens, I believe, for what the lens is doing, too.