I always found the extraordinary loss of life in the First World War very moving. I remember learning about it as a very young child, as an eight- or nine-year-old, asking my teachers what poppies were for. Every year the teachers would suddenly wear these red paper flowers in their lapels, and I would say 'What does that mean?'

Thor and Loki are defined by each other.

It's like playing tennis, you play a different rally with different people. Every actor is different and the chemistry between actors is different.

Never, ever, let anyone tell you what you can and can't do. Prove the cynics wrong. Pity them for they have no imagination. The sky's the limit. Your sky. Your limit. Now. Let's dance.

We're all intrigued, in our civilized world that we live in, and curious about how we would get on, on an undiscovered island that is untouched by man.

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.

Don’t judge people on who they used to be. Allow them to be who they are now.