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.
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.