If you are at a boys' school, especially, there is a level of bravado that you have to keep up otherwise you'll get picked on.

I definitely go through periods where I'm in a particular mood, or there's a consistent imaginative context that I feel I'm in, and I'm drawn to certain things. I can sometimes feel it when I'm moving away from something that I was once interested in - an idea or an exploration of particular relationships. I go, 'Well, I think I've done that and I don't want to do it again.'

I've always loved King Kong. He's like a modern-day myth, an icon of the cinema.

Some of the greatest actors have turned superheroes into a serious business: Michael Keaton and Jack Nicholson in Batman; Ian McKellen and Patrick Stewart, the first venerable knights of the X-Men, who have now passed the baton to Michael Fassbender and James McAvoy.

What I learned in Guinea is that we are all responsible for the state of our world. The world - and the system by which we trade, share, cooperate and conflict - is clearly not working. We are only as strong as our weakest members. UNICEF is run at every level by strong, relentlessly energetic, deeply capable people who use that strength, energy and capability to help those who need it most: the weakest, most disadvantaged women and children of our world. All I can do now is help make people aware of what is happening, of what they are doing. That is all that I can do. For now.

People love escapism and there should be a place for it.

The language of digital communication is a language we don't understand in a way. People say the internet is like the Wild West in that it's lawless and we haven't worked out how to make it structured or moral.