See the opportunity in the misstep.

It was fantastic to be able to have my kids on set. Dash, my eldest son, who’s not quite five, was into knights and his godmother had given him a plastic Marks & Spencer knights’ outfit and [first assistant director] Tommy Gormley said that he could stand to protect me during the scene where Clive [Owen] is talking about the immensity of sitting on the throne. I’m actually looking through an archway at my son standing in his knights’ costume protecting me!

My husband keeps me really honest.

Perhaps being a parent has changed career more in that you ask yourself how long you'll be away from home. My eldest child is approaching school age so that becomes more important. They're less portable.

One of my favorite moments is onstage, when you see a dancer leap, and you think they're flying, and then they fall. It's that moment of suspension that you look for, and sometimes you get it and sometimes you don't.

When I have my moments of insomnia, youll find me on style.com.

I have the embarrassing thing where often if you're watching a film, you kind of go through the emotions and the thought stages that your character went through, but you sort of do it with Tourette's. So I end up often crying when I'm crying, and looking angry when I'm looking angry, so it's pretty ugly.