I really don't know anything about music, and it's no great experience for me. But I do think that music has a purifying element.

Maybe it is worth investigating the unknown, if only because the very feeling of not knowing is a painful one.

Different people in different parts of the world can be thinking the same thoughts at the same time. It's an obsession of mine: that different people in different places are thinking the same thing but for different reasons. I try to make films which connect people.

Someone knocks at the door of an apartment to borrow salt or sugar, people run into each other in the elevator, and in this way become inscribed in the spectator's memory.

I feel Polish. More specifically, I feel like I'm from the tiny village in the Northeast of Poland where I have a house and where I love to spend time. But I don't work there. I cut wood.

Documentaries deal with people who live real, everyday lives. But if these people trusted us and told us the truth about their lives, it could be used against them - which sometimes happened.

Of course, you could, no doubt, call my going to film school the biggest mistake I ever made.