Parts win prizes, not actors.

It's a nightmare to sit and watch a film that I'm in. There's a horrible inescapability to it.

Three children have become adults since a phone call with Jo Rowling, containing one small clue, persuaded me that there was more to Snape than an unchanging costume, and that even though only three of the books were out at that time, she held the entire massive but delicate narrative in the surest of hands.

With the best intentions, the job of acting can become a display of accumulated bad habits, trapped instincts and blocked energies. Working with the Alexander Technique has given me sightings of another way... Mind and body, work and life together. Real imaginative freedom.

Film has to be reflecting the world that we live in, and that's all you want to be a part of. Actors inhabit the same planet as everyone else. It's a weird thing that happens when you're an actor because people hold you up because you somehow embody in parts groups of people or people's hopes or something.

You can act truthfully or you can lie. You can reveal things about yourself or you can hide. Therefore, the audience recognizes something about themselves or they don't -- You hope they don't leave the theatre thinking that was nice...now where's the cab?'

Do you know that moment when you paint a landscape as a child and, when you're maybe under seven or something, the sky is just a blue stripe across the top of the paper? And then there's that somewhat disappointing moment when the teacher tells you that the sky actually comes down in amongst all the branches. And it's like life changes at that moment and becomes much more complicated and a little bit more boring, as it's rather tedious to fill in the branches.