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

I love making movies, I love trying to make them as good as I can, but I feel like sometimes the marketing and publicity around the movie, becomes the most important part of it.

When you're training as an actor, a lot of the big work you're learning is to treat fictional characters like real people. You don't have the problem of discovering a backstory with real people, but there's always a mystery which is common to both fictional and factual characters. They are never quite the person you think they are.

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

It's hard for it to make a mark in this city because London has so much culture to offer.

I was a fan of Hitchcock, but more importantly than that, he is such an inscrutable man, and a very carefully inscrutable man. He apparently was blank-faced with a calm and controlled presence. I was immediately anxious and thought, 'How am I going to get behind that?'

Hitchcock is a big ask. I am playing someone significantly older than me and someone significantly bigger than me. The stuff I find very interesting is why certain physical things have come about. How can he be light on his feet when he is so big? How can his weight vary so much? Where does this rather beautiful voice come from?