You [as an actor] have a responsibility to Jonathan's book and you have a responsibility to talk about a subject that is going to be, whether it's contentious or not, it's going t bring up a huge, emotional response from people. A lot of people will say they are ready or they're not ready.

You have to trust your own instincts about what is appropriate and what is not appropriate and trust your own feelings about what you can and can't show for yourself, and it'll be different for everybody.

I think it's absolutely fascinating that in Berlin the parliament can discuss actively the role of their soldiers in Afghanistan because is it still possible, literally, for a German soldier to take up arms.

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.

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.

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

Every now and then I have to teach directing. The thing about the theatre is that the most important thing you can do as a director is to make sure that everybody is in the same world - you have to create the world and make sure everyone buys into it.