I didn't understand the concept that there's a state that won't allow its people to leave or come back whenever they want to, by saying, "It's because we love you." And I never get that - I still don't get that concept. I thought, that's very threatening, and I don't get why you would want to make this experiment with Germany separation.

I was 14 when the wall came down, so I only ever knew about the GDR or experienced it as a kid. I lived very far away from it, and you only ever thought about the GDR when you saw the Olympics, because you were like, "How are they always winning?!"

The GDR people found love at the workplace, and the West is always telling stories about finding love when work is over and you have your free time and your leisure time. That's when you fall in love. But in the Communist state, you fall in love in the workplace, because that's mainly where you are.

Of course, East Germans had children, they fell in love, and the grass was green and the wind was blowing. It's 40 years. It's a generation. There was a big wave of nostalgia, we call it "Eastalgia," where they said it was not always bad.

Mainly I got to know about the atmosphere in the East Germany and how people felt, because I never experienced it physically. You can't talk, because everywhere there's someone listening in on everything you say, and you might get things wrong and be questioned or they come up and say, "Well, actually, we want you to work for us and if don't, we'll pressure you," and stuff like that. Living in a country like that, how do you get around it and still keep your dignity? I think it's one of the main questions.

I didn't understand the concept that there's a state that won't allow its people to leave or come back whenever they want to, by saying, "It's because we love you." And I never get that - I still don't get that concept. I thought, that's very threatening, and I don't get why you would want to make this experiment with Germany separation.

That is an amazing experience, because we with director Christian Petzold know whenever we criticize each other, it's for the best, and you don't find that very often, that you trust each other so much. That's a special thing.