At school, I decided I wanted to be a director and then I went out and spent the rest of my adult life trying to be a director. It was really clear to me. So in that sense I was very lucky.

Is it appropriate still for a German to have a gun? I only use that as an example of a country that's still deeply involved and engaged in the conversations about how to come to terms with the past. Certainly for that country, it's not forgotten.

I spent a little time in Germany as a schoolboy learning German, and it's a country I knew very well, spent a lot of time in. I knew the history very well. I've always wanted to do a piece of work about the post-war period, of one sort or another.

There are a few writers that one has a relationship with that means, basically, you do whatever they say. One is Caryl Churchill, and the other is David Hare.

The truth of the matter is, every film is imperfect. It's the nature of the beast. One of the things that people ask me all the time is, what's the difference between theater and film, and one of the biggest differences is, in the theater you always get another go.

I categorically resist this idea that films are supposed to be autobiographical and the only stories you tell are about your own life.

The really successful work in England tends to be working-class writers telling working-class stories. The film industry has been slow to wake up to that, for a variety of reasons. It still shocks me how few films are written or made in England about working-class life, given that those are the people who go to movies.