I fear looking back and wishing I had done things I hadn't.

Artists instinctively want to reflect humanity, their own and each other's, in all its intermittent virtue and vitality, frailty and fallibility.

I learn the lines as soon as I can and then the challenge really, for filming, is to show up and be there and respond to what's around you. That's where the gold dust is. It's really strange, no amount of preparation will help you with the magic of spontaneity on the day [of filming].

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.

Real love is strange and changeable… but also somehow constant.

I've done my share of period stuff. I'm not sure why, but people say I have a period face. The bread and butter of British TV is Jane Austen adaptations and bridges and bonnets and boats and horses.

I definitely go through periods where I'm in a particular mood, or there's a consistent imaginative context that I feel I'm in, and I'm drawn to certain things. I can sometimes feel it when I'm moving away from something that I was once interested in - an idea or an exploration of particular relationships. I go, 'Well, I think I've done that and I don't want to do it again.'