I had to change the shape of my own voice. It was quite hard to pull off and so once I had it, I stayed in Hitchcock's voice all day on set.

We're interested by public personas and private personas, otherwise we wouldn't put on with actors rambling on with the same kind of stuff, over and over again, saying variations of the same thing. I'm always amazed by how fascinated people still are by actors because it's the same version of events that actors describe, all the time.

There are far more good actors than there are jobs for them, so it's a big question of luck.

When working abroad you work pretty hard, but with time off, this is the greatest job in the world. You drive. You explore Memphis, or wherever you've landed, or go and see Dr John, or the Californian landscape. And, yes, I've had a few good meals.

We're blessed with, as we were on 'Harry Potter,' lead actors who are amazingly grounded people.

I didn't sound anything like Capote at the screen test. It was more like Bob Dylan. In his early years. With the flu.

You're playing a character in a drama who happens to be based on someone who existed. It's never going to 'be' that person, but it's based on someone well-known, and you want to create enough of that person for it not to be a distraction.