How many movies have Michael Büttner and Rolf Bauer collaborated on?

They have worked on 5 movies together! Their first movie together was Und mehrmals täglich quietschen die Matratzen (1973) while their highest rated movie together was Between the Covers (1973). They have not worked together since Ob Dirndl oder Lederhose - gejodelt wird ganz wild drauflos (1974). They are most known for their comedy films together.