I think becoming an actor because it's a ridiculously insecure profession to go into. I feel very comfortable but very lucky. I think any time that you imagine that it's plain sailing for hereon in, then you're kidding yourself.

The little song and dance number at the end - that's me, my voice, howling out. It was a new experience for me. I've never sung before and I've certainly never sung on screen. I think I sung on stage when I was 13 and for some reason nobody's asked me to try it again since.

I think I can lead a pretty anonymous life, yeah.

I don't like to be challenged in the way that often happens, where somebody writes something and then you, as an actor, are expected to really make it up in your imagination. That's not really an ideal way of working.

Besides, most of the books I like involve people I could never play in a million years.

When something is iconic, if you're very careful and delicate, you can add onto that iconography. It can expand. People have attached so much to it themselves, and connected to it, so the risks are big, but the potential is enormous, at the same time.

No one has ever mistaken me for someone who should be giving fashion advice, but I will say I'm always impressed by women who have kind of figured out their own style and comfort. That's what I find attractive.