A lot of directors idealize their leading ladies or turn them into these objects of sexuality and beauty.

What I really tried to do with Helen was make her show this sad side of her. She was married off at 16, was so young and living in this castle that can't leave because of how she looks, and married to a man she hates and three times her age.

It's quite a famous story that takes place on Christmas Eve, and the Germans, French, and Scottish are trying to make peace one night and they bury their dead and they play football. I play a German opera singer, in German, which I never have so I am really excited about that.

I find period pieces really difficult to get my head around. How can we know what it must have been like to be in Nazi Germany in 1944? The reality weighs on me because I feel like you want to try and honor what happened, but how can you truly know? I have never lived in a war or lost anyone.

You can learn any accent you want. It's a fascinating thing.

I don't think my generation carries the weight of World War II anymore. But I've got to tell you, even if we don't really talk about it, we get reminded constantly by other people or other countries. I get offered a World War II movie at least once a week just because I speak German and was born there. I have always stayed away from it because I didn't want to be put into that box.

Sometimes it takes courage and experience to allow yourself to actually go into being someone that you're not, and it's the most liberating thing to let go. I do think that's why I love acting - it's being someone that you're not. And sometimes you're really scared of it, and then once you let yourself go there, it's the best thing ever.