This must be the worst idea for a movie ever. Yes, even worse than Jesus Christ, Vampire Hunter.

It tells the story of a self-centered circus clown, Helmut Doork, who is sent to a concentration camp after a drunken impersonation of Hitler. There, he befriends the Jewish children of the camp, and performs for them, angering the camp Commandant. He is accidentally sent with the children on a train to Auschwitz, and there, he is expected to lead the children, like a Pied Piper, to the gas chambers.

Down the page, the site has links to reviews from people who have read the screenplay and interviews with the few who have actually seen it., which go about as well as you'd expect.

Seriously, this has got to be the worst movie ever made. I can't believe I've never heard of this before.