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.

I think everyone should pursue their dreams. Whether you want to play football, act, sing, become a writer or whatever you have burning inside you as you’re growing up, you should pursue it.

There is so much poverty and desperation in South Sudan, and yet each side is militarily equipped.

I find that, when I'm working, if I start the day with a run - outside, not in a gym, but just me out there in the elements, with only my own legs to propel me forward... It's something to do with just being in the world and getting out of my own head.

Heath Ledger's performance in The Dark Knight quite simply changed the game. He raised the bar not just for actors in superhero films, but young actors everywhere; for me. His performance was dark, anarchic, dizzying, free, and totally, thrillingly, dangerous.

Haters never win. I just think that's true about life, because negative energy always costs in the end.

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.