What's the point of doing a brilliant Hedda Gabler in my back garden if no one will ever see it?

There's never been a game plan, and I suppose I've had an uneasy relationship with my ambition. Someone who had been in my year at drama school once said to me that I was terrifyingly ambitious back then. Which was not at all what I felt at the time - I felt paralysed with shyness, though that evaporated.

I started so slowly and had so few followers and then it kind of sort of snowballed. I still feel an intimacy on Twitter, which I think a lot of us do. It feels intimate, doesn't it? I love it. I never thought I would.

After 'The Real Thing,' I thought about giving up acting because it's difficult to have a rich life outside your work when you're an actress, a private life that can survive being picked up and put down. That's what I thought, anyway.