I'm never going to be in something as commercially successful as 'Harry Potter' ever again. It's impossible. So that gives me incredible freedom to go off and make the slightly off-the-wall films that I want to make.

I think of myself as being Jewish and Irish, despite the fact that I'm English.

As much as I would love to be a person that goes to parties and has a couple of drinks and has a nice time - that doesn't work for me. I do that very unsuccessfully. I'd just rather sit at home and read, or go out to dinner with someone, or talk to someone I love, or talk to somebody that makes me laugh.

Because I'm short and slim, I can identify with somebody who's an unlikely fit for something and desperately wants to be part of it.

I don't think of those things [from farting, to male on male affection, to crossdressing] as being taboo, I suppose, so it didn't strike me as, "Oh, I'm breaking boundaries and stuff..."

If I can make a career for myself after Harry Potter, and it goes well, and is varied and with longevity, then that puts to bed the 'child actors argument'.

I definitely think that theatre is something I'll keep coming back to in my career for as long as I can. I also think theatre's something you have to be very fit to do. I am fairly fit, but I don't think I could do it all the time.