At the end of drama school, I made a contract with myself: I'd try acting for five years. I was 26. I had already spent eight years working in restaurants and gas stations. So I had seen enough small businesses to understand that that's what acting is: a small business.

To get down to the quick of it, respect motivates me - not success.

Doing anything worthwhile takes forever.

I have done many movies that people hadn't seen. 'The Fountain,' I spent a year on that. 'The Prestige' with Chris Nolan, and 'Australia.' From my perspective it's very satisfying. Some movies people see and other movies they don't. 'Wolverine,' 'X Men,' I know that in some level people know me just for that and it's fine for me.

To make films like 'X-Men' work commercially - and also have some class - is one of the hardest things there is to do. I want to be seen to be able to cross lots of genres and still be 'fair dinkum,' as we say in Australia, which means genuine and true and, well, unique.

But anyone who's done a musical knows; whether you're dancing or not, physically it's the most difficult thing you can do.

I can't stand the sound of fingernails on a chalkboard!