Sex addiction is a subject that should be discussed

There's always the things that you think are going to be tough. I've been nude once, and I was like, "Oh, that's going to be a nightmare," and actually that was fine.

I didn't want to do a costume drama. It's a great thing to do, but I've done them, and I didn't want to do the same thing again. Of course, costume dramas can be from all different eras, but at the time, I just felt very sure that I didn't want to be boxed in as an English actress. I wanted to be an actress, rather than an English actress.

Sex addiction is a subject that should be discussed

I'd love to do a Paul Greengrass movie, or something like that, that's a character-driven action film. I'd like someone to make me go to the gym every day, and all that stuff. I don't know. Wherever the good characters are, I tend to try to get a job. It was nice because this was dipping my toe in the action genre. Maybe I might put my foot in, next time.

When you start playing a character every day for seven weeks, it suddenly starts becoming easier.

In London, people can be so... well, it's not even a case of people being unkind or unfriendly. You just don't make any contact in London. You go from A to B with your eyes on the pavement.