How many movies have Conny Bellenbaum and Michael Büttner acted in together?

They have worked on 4 movies together! Their first movie together was Between the Covers (1973) while their highest rated movie together was Overnite Models (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.