Pfeiffer
Starring Dieter Augustin, Ludwig Wiedemann, Marthe Keller, Heinz Klopp, Georg Leberecht, Max Zihlmann, Michael Berling, Thomas Schamoni
Watch "Pfeiffer" on Amazon released in 1967. It's a comedy and documentary movie, and has a rating of 8.4 out of 10 from Imdb which is very high for this kind of movie, and is currently only available for purchase or rent.