We've always been involved with America - I have a son who lives there and it's a big part of my life.

I've actually heard people protesting furiously about straight male costume people as well. It's not universal and there are examples that break the mould all over the place. In my experience, it's more prevalent in the UK than in America.

It's a funny thing - the reality is I have no feelings about school. It's long gone. Funnily enough, the bad memories - of which I don't have any left to be honest, I can just remember a sense of tedium - have faded. And teachers that I liked have remained quite vivid. There are three or four left.

I think that London is very much like that. I find there's humour in the air and people are interesting. And I think that it's a place which is constantly surprising. The worst thing about it? I think it can be smug and aggressive.

It was mainly to do with Helen Hunt, to be honest. That's what drew my attention to it. I was interested in the fact that she was going to be directing. I'd never met her but she projects a degree of intelligence and it was convincing t me that she'd be able to handle this sort of material very well.

Sometimes to think about why some institutions are stable, it's interesting to go one generation back and look at the author of that stability.

My grandmother was a minister as well, which was not that common in the 1930s.