herzogAcclaimed German director Werner Herzog (Fitzcarraldo, Grizzly Man, Beverly Hills Chihuahua 2) was apparently unaware that The Simpsons was a TV show, if the shoe-eating auteur is to be believed:

An episode of The Simpsons is soon due to air in which Herzog’s famous voice will make a cameo appearance. “I was very surprised when they approached me because I thought The Simpsons was a newspaper cartoon. So when they called, I said, ‘Do a voice? I don’t understand, it’s a TV programme?’ They thought I was joking,” he continues, chuckling, “but I was not.”

Well, it was a weekly comic strip for like a year, so he was partially right. [The Guardian]