How many movies have Gunter Otto and Sepp Gneissl collaborated on?

They have worked on 9 movies together! Their first movie together was Sensational Janine (1976) while their highest rated movie together was Kasimir the Bailiff (1978). They have not worked together since Liebesgrüße aus der Lederhose 6: Eine Mutter namens Waldemar (1982). They are most known for their comedy films together.