I've had quite a wide spread of a career. But it's not like I've had to negotiate what Sienna Miller has had to negotiate, or even Felicity Jones, for example.

My goal has always been, from the time I was at drama school, about longevity.

It's great to have a job and then go to another one, and have another one to go to after that. It doesn't always happen; you might be waiting a few months. But I've had some interesting roles, and worked with some great people. And it has been a really interesting mix between theatre television and film.

There's such a fascination with celebrity. I think that's a very different thing to being an actor.