How many movies have Franz Xaver Lederle and Marie Luise Lusewitz collaborated on?

They have worked on 8 movies together! Their first movie together was Bohr weiter, Kumpel! (1974) while their highest rated movie together was Three Swedish Girls in Upper Bavaria (1977). They have not worked together since Cola, Candy, Chocolate (1979). They are most known for their comedy films together.