Watch Fmovies. Registration of the first theatre program by the Dutch comedy duo (Erik) van Muiswinkel and (Diederik) van Vleuten. Two men visit the Montignac caves, famous for their prehistoric rock paintings. Diederik van Vleuten thinks he has ended up in the Womb of Western Culture, Erik van Muiswinkel thinks his five-year-old son paints better. They don't agree.