There’s an Iago and a Romeo within all of us. There is that lover, and there is that sociopath.

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.

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.

Never stop. Never stop fighting. Never stop dreaming. And don’t be afraid of wearing your heart on your sleeve - in declaring the films that you love, the films that you want to make, the life that you’ve had, and the lives you can help reflect in cinema. For myself, for a long time… maybe I felt inauthentic or something, I felt like my voice wasn’t worth hearing, and I think everyone’s voice is worth hearing. So if you’ve got something to say, say it from the rooftops.

I think that is so interesting. It is le Carré. There must be so much of him when he was younger. He's an interesting character. I don't want to say the word "passive" because there is something very active about the way he is passive, if that makes any sense: the nature of his watching and his listening is active. It is always so alive because he is, essentially, a spy.

What is the best use of my time on this planet?

I think cruelty is just loneliness disguised as bitterness.