I think every filmmaker in Europe would be lying if they didn't say one day they just wanted to make a movie here in Hollywood or at least try it. It's very different from European filmmaking, because here it's like a real industry. It's very much about money and making money, which I think is fine, because it's very expensive to make movies.

You always face a bunch of hands trying to stop you from working.

Cinema is the most challenging art form that you as an artist can create. It's easier to paint a painting because you're very alone. You just have the canvas in front of you and then you do stuff. I'm not saying it's easy to paint, but it's a solitary thing. Whereas movies combine so many different things from pre-production to production, sound design, production designing, leading, organizing, while still being creative.

If you're undercover for two or three years, I think you lose your private life.

In America, people really love movies here and it's part of the culture. Even in Germany, still sometimes, the theater is always bigger than movies. It's more art. Movies are more popcorn. Here, movies are really an art form.

Each shooting day is a big challenge, but it's also fun.

In the end, you as a director, of course, are the captain on the ship. You have to say, "Well, we're sailing to the left and not to the right." But, you always have to listen to everyone, because I'm not always right and other people have great ideas, too. I think that makes great moviemaking.