I grew up watching 'Superman.' As a child, when I first learned to dive into a swimming pool, I wasn't diving, I was flying, like Superman. I used to dream of rescuing a girl I had a crush on from a playground bully.

When a new project comes along, I want to know that the experience is going to be challenging and exciting. Part of me is going to be drawn to doing something new and also the satisfaction of intellectual curiosity.

Loki in 'Thor' is the most incredible springboard into a sort of excavation of the darker aspects of human nature. So that was thrilling, coming back knowing that I'd built the boat and now I could set sail into choppier waters.

In the end, you will always kneel.

I learn the lines as soon as I can and then the challenge really, for filming, is to show up and be there and respond to what's around you. That's where the gold dust is. It's really strange, no amount of preparation will help you with the magic of spontaneity on the day [of filming].

Showing young children in these communities, that there are outlets for their feelings, that there is room in a space for their stories to be told, and that they will be applauded - and it's not about ego, it's about connection: that their pain is everybody else's pain.

We're all flawed heroes. Responsibility is power. Take responsibility for the consequences of your actions, and the world is yours. Everything is a choice.