You want to have enough of a profile to be able to do all the work you can, but at the same time you want to have your own space. But there are a lot of actors who achieve it, a lot of movie stars even, people like Emily Watson and Cate Blanchett. They seem to be able to carry on with their lives and still produce wonderful, high-profile work.

I think it helps to have a good old-fashioned trajectory, plodding along. Obviously one has an ego and it's really easy to have that ego tickled, but what helps me get through the night is if I concentrate on just quality of work so that I don't panic about my profile.

I think age is sometimes just a number. But it's a real joy. Young actors don't come with any of the baggage that we load ourselves up with. They're not worried about their profile, they're not worried about how good they look, or all the nonsense. They just tell the story and ask: "What happens in this scene?" Well, I'll do that then. And professionally it's good for you because it means that you're forced to do the same thing, and that's always a good thing.

There are some roles you just don't say 'no' to. Those compass points: you get them so rarely as an actress.

People at a point of conflict are always the most interesting stories to tell.

I suppose it's whether you want to be a famous person, or whether you want to be an actor. You have to decide what your priorities are. Great actor, huge star. Sometimes, the two walk hand in hand. Most of the time, they don't.

I'm a right pain in the hole for my agent. I won't take certain parts if I think they're offensive or banal. For instance, I won't do a film if I think it's full of violence for violence's sake, or a television drama if I don't think it's intelligent writing.