The Chinese say that having two homes is the way to madness. I'm not mad, but I definitely wish Hollywood would move to Trafalgar Square. But the life of an actor is a life of movement, isn't it?

Obviously I have a bit of an awareness because I go to the internet like everybody else but I don't get too involved in the details of those conversations just because it can hurt you if you stumble on something that's not nice.

My dad says that when I was two or three I used to go out dressed as a different character every day. I remember thinking it was perfectly normal to wear different coloured shoes and carry a pink umbrella. But now I've got a goddaughter of that age; I realise it's not normal at all.

My dad's always been a famous actor, so I've grown up with that, and with the lifestyle. In a way, I think I thrive on the insecurity that comes with it. Not in my private life - I like to believe that my friendships and my relationships are strong.

I really don't mind what people assume about me. I really think that my brain is my private thing. I don't need the approval of people. I don't need people to think I'm intelligent. And I'm not that intelligent.

People are going so far as to kill themselves over the things that happen online.

I can't say that I know the lexicon as intimately as a lot of people, so I may be unworthy of being called a Trekkie. That would be doing a disservice to the people who really are Trekkies.