How many movies have Dagobert Walter and Werner P. Zibaso collaborated on?

They have worked on 4 movies together! Their first movie together was Hausfrauen-Report 3 (1972) while their highest rated movie together was Massage Parlor '73 (1972). They have not worked together since Das Wirtshaus der sündigen Töchter (1978). They are most known for their comedy films together.