Since my education, I've done quite untraditional things. There are very few Etonians who went to Rada. And far fewer Etonians - certainly when I was there - went to Cambridge. I don't know whether it's the same now. Most people I knew went to Oxford, because it seemed more of an easy bridge.

If you play it straight it's funny - the best comedy is always played straight down the middle. The adjustment is understanding from the screenplay that a moment is hilarious.

Chris Hemsworth is like Christopher Reeve in that he can do two things: he can wear a big red cape without a shred of self-consciousness. But he's also funny as hell, and he's so sweet. So with all the fish-out-of-water stuff, he's so funny. So he does almost two jobs in a way.

You look at the greatest villains in human history, the fascists, the autocrats, they all wanted people to kneel before them because they don't love themselves enough.

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?'