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.

My dad, in particular, was adamant that I should finish my education. He encouraged me to go to Oxford, for instance, and I rather doubt I'd have gone if he hadn't. I would have gone straight back to L.A. and tried to start my career.

What you're seeing, certainly on Instagram, is not real, not a reflection of real life, not an interaction.

Being protective is important.

I love to hang out with boys - I've got brothers - but I'm a girl's girl, in all the ways you can be girlie. Nails and chats and gossip magazines and reality TV and pop culture.

In horror films, they sometimes don't show the monster because our imaginations and our own pain is so much greater. Social media is like that. I think it's so great. It doesn't have to show a monster - when you see someone leaving a mean comment, or living a so-called perfect life, you just put all of your pain into that.

I sort of lived half my life in California, half in England, so I am, I suppose, a little bit American.