I'm just happy to be a film where for once I don't have to worry about my hair, because my managers are always complaining about my hair looking depressing in my movies. Which is true. I mean, it's true.

When I'm panicked about my love handles, I go to the YMCA and get obsessed with Kid Rock videos as I'm on the running machine.

I spent a lot of time with a real detective, a lady detective inspector who was the only female detective inspector in the whole of East London. She and I hung out a lot. She showed me what she did and I spent time with her. So, [she was] a lot of the inspiration for the way I dressed and sometimes the dialogue in those interview scenes where we're cross examining and questioning the youths and trying to get a confession out of them.

I've only half-admitted I'm a professional. I know I am, I've paid my dues, but one of the things I could do better when I'm acting is to really be rigorous and to think I know how to do it. To use my brain.

If there's any plan or scheme on my part, it's subconscious. Whatever I do tends to be very different from the thing I did last. You're terrified of boring either yourself or anyone else. It's always attractive if it feels like something that you haven't done before. I generally tend to be better, I think, when I'm terrified out of my wits.

I already feel a bit annoyed at myself for writing screenplays. It's a bit, I don't know, model-singer-dancer-actress that went to a posh school. There's something too weirdly predictable about it.

There's a whole world of bad TV that's along similar themes - the cop drama.