Working with Roman Polanski is funny. It's like anything in life - someone warns you that something's going to be amazing or difficult or awful, and you say, "I can do that. I can cope with that." And then when you're in the middle of it, it may be joyful or tricky, but it's never difficult in the way you think it's going to be difficult.

I don't feel under pressure to work because I love what I do and I wanted to do the projects that came my way.

From a very young age, I wanted to get up on stage whenever I went to the theatre - the actors just seemed to be having so much fun. One of my worries about theatre, in fact, is that the actors are quite often having more fun than the audience.

It's funny, when people want things to be very truthful and you're dealing with an inexperienced actor. I'm of the school that believes things like that have to be very carefully choreographed. You need people there to say, "It's going to happen like this."

I love the ups and downs and the eccentricities of my career. The worst movies have produced some of the best friendships.

There are movies where I've walked onto the set and felt, "This is home," and I'm confident in myself and my work, but that was my first experience of live TV. At that stage, Friends was at its unassailable height of popularity and brilliance.

There's this absurd situation on a movie set where your trailer's here and the set is here and the lunch tent is here, and you're not allowed to get yourself from these three places.