I don't think it's that I don't like Sondheim. It's that I find it really... I don't know how to describe it. Doing it is the most extraordinary thing. Because it's like Shakespeare times 100 with singing. It's that satisfying - and that demanding.

You could say I'm a character actress. Or maybe a character actress who does peculiar, interesting lead roles. Does that make sense?

I was brought up a Catholic, so I take no pleasure in guilt.

At the time of Woodstock, I was just 13, but I used to see these exotic hippy creatures and I did look on with envy. How could you not? In an ideal world, I would have loved to have been a hippy - but I might have been a bit strait-laced. It was my fantasy.

I don't feel the need for religion. But I went on a yoga retreat last year and I do believe slightly in the karma thing and just being good and true unto yourself. And I slightly believe that you can attract good and bad to you.

The one good thing is that I get a lot more good scripts coming through my letterbox. 'Vera Drake' raised my profile in one way, and then 'Harry Potter' in another.

You can only do your best. That's all you can do. And if it isn't good enough, it isn't good enough.