I love test screenings. Some directors don't, I know. But I love it. I think it's because I come from the theatre and in the theatre, previews are where you really have to listen to the audience and really feel how they're responding. I found our test screenings incredibly useful.

If I wanted to work financially, I would have made a series of different choices. I do get offered lots of movies which you could make a lot of money out of. And I always say, 'Why would I do that, when someone else could do it much better than me? Why would I want to do an action picture? Why?

I'm a theatre person, that's who I am. I'm happy to make sojourns into the world of movies but I'm basically a theatre director that potters off and does a couple of movies.

I would love to do something for TV... I wanna do 'Kavalier & Clay' on HBO as an eight-parter. It'll be so much better as a series, honestly.

Well, there are three different processes of making a film, of course. They're sort of re-written three times. You write it to start with, and then you shoot it and you re-write it while shooting and you sort of re-write it as you edit.

The great fun of doing new plays is that people have no idea what's going to happen next. That goes quite soon, as people start talking about it, and the only way you can keep hold of that is genuinely to keep changing it.

One of the great joys of my job is that you spend a huge amount of time investigating different areas of literature.