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.

In the end, you will always kneel.

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.

Truth in drama is elusive. You never quite find it, but the search for it is compulsive.

I try not to make plans. God always laughs at your plans.

I love the acting community at Cambridge. It's really quite committed and serious, since the days of Derek Jacobi and Ian McKellen right through to Emma Thompson and Hugh Laurie.

I was so lucky because what I did in 'Thor' was I built the character from the ground up - the foundations of his spirit, really. He was someone who was born with an expectation that he would one day be a king, born with an entitlement.