When you're doing a film that has so many effects, you do a lot of it on green screen, and you can't see what that world is.

I'm one of those people, when I see a film, I believe it to be true. You know, sort of the authenticity of the camera and seeing things on a screen.

My first film, 'Like Minds,' was with Toni Colette, who was extraordinary. I mean it was basically a mini-masterclass for acting on film at a time when all you could probably see were my eyebrows bouncing up and down on screen.

On so many levels, acting in film and TV is so much the sum of its parts, and somewhere in there, there's an alchemical thing that makes something happen or not - that makes something connect or not. Now, of course you want to make work that people see, but the enjoyment I get out of acting is playing characters.

There's always been a relationship between the film world and fashion.

I find in film acting that however many years you have done it for, you can feel totally relaxed and at ease with the people around you, absolutely wonderful, then roll camera and a little part of you goes, 'Ugh'. It is learning how to manage that.