To be able to do this job in the first place you've got to have a bit of an ego.

How many movies do you see when you can say this director really knew what film he wanted to make? I can count them on the fingers of one hand.

Wanting to be a good actor is not good enough. You must want to be a great actor. You just have to have that.

One of my career ambitions was fulfilled working with John [Hurt]. I loved his work long before I ever had the idea of being an actor, so I was nervous to meet him. I was like a fanboy, like that annoying character on 'Saturday Night Live'. I'm sitting there. 'Do you remember when you were in 'Midnight Express'? Remember that scene you were in?' And he doesn't disappoint.

Interesting things come your way but as you get older, your lifestyle changes. I don't want to travel; I don't want to be in a hotel room away from my family.

The book tells you everything you need to know. The book is the map of the world that you're in with the character.

By the way, the Harry Potter series is literature, in spite of what some people might say. The way J.K. Rowling worked that world out is quite something.