When you direct the dialogue you can be precise, but with a song as a director you're more like a football coach. You can say one, two things in the beginning and then the actor has to follow what happens.

I had the feeling I had to stay focused on what's lying under. A big part of the story in Toni Erdmann happens on the sub-level. On the surface, a lot of scenes, it's banal. If the actor starts thinking, "Oh, I'm in a genre, I'm doing a comedy, I'm doing funny things," then you lose.

With every enemy, when you get closer you understand much more, or the picture dissolves.

Politically, the world economy really depends on consultants. Because it's also, in a way, an outsourcing of responsibility. They can say, "Yeah, they told us to do that," and the consultant says, "Yeah, but I'm just a consultant," and nobody's responsible anymore.

For me, it was always clear that Toni Erdmann is more a film about what globalization, capitalism, does with private relationships much more than making a "political" film. It's more interesting to raise questions, because I don't feel in a position to "make a statement" with the film. Toni Erdmann comes from a completely different generation then his daughter, it's the post-war generation, they were very politically engaged. They raised their children with a lot of human worldviews, sent them out in the world believing in a world without borders.

A family is something very static and hard to escape, so everybody has a certain role over the years, no matter if you like it or not.

Father-daughter has a lot of layers, I find.