How many movies have Franz Xaver Lederle and Werner Röglin collaborated on?

They have worked on 6 movies together! Their first movie together was The Pussy in the Bathhouse (1976) while their highest rated movie together was Plem, Plem – Die Schule brennt (1983). They have not worked together since Plem, Plem – Die Schule brennt (1983). They are most known for their comedy films together.