I knew it was called 'Dunkirk,' Christopher Nolan was directing it, and it was a war film. That was all anyone knew.

You make yourself do the physical aspects for a Christopher Nolan film!

I don't really think much about how I would have fared in the Second World War. It's a topic that has to be treated with respect and subtlety, and you can't just go in all guns blazing and make an epic action film.

The spirit of Dunkirk is something everyone grew up learning about. After Dunkirk, everyone came together and it set the tone in the U.K.

I'm not really a green juice kind of guy. I like feeling downtrodden and worthless when I walk around London and have someone click their tongue at me and tell me to speed up.

I like to think I'm fairly grounded, and I have friends who will very happily tell me if I'm ever being big-headed. I know things will change. But I'm hoping it's nothing too drastic.