I would always play the baddie, incidentally.

Chris Hemsworth is like Christopher Reeve in that he can do two things: he can wear a big red cape without a shred of self-consciousness. But he's also funny as hell, and he's so sweet. So with all the fish-out-of-water stuff, he's so funny. So he does almost two jobs in a way.

If you can run around the corner and say hello to someone do that instead of emailing. It's always more rewarding; the connection is always more authentic. If you've got something to say and you can say it someone's face, it's so much better, healthier.

I was so lucky because what I did in 'Thor' was I built the character from the ground up - the foundations of his spirit, really. He was someone who was born with an expectation that he would one day be a king, born with an entitlement.

Everythings a choice. Nobody's born good. Nobody's born evil. It's always a choice.

Never, ever, let anyone tell you what you can and can't do. Prove the cynics wrong. Pity them for they have no imagination. The sky's the limit. Your sky. Your limit. Now. Let's dance.

Joanna points her camera at a section of society unused to having cameras pointed at it. But I don't know about categorising them in terms of class; I'm a bit wary of that. My dad is the son of a shipbuilder.