How many movies have Heinz Schnackertz and Ilse Lotz-Dupont collaborated on?

They have worked on 6 movies together! Their first movie together was Moselfahrt aus Liebeskummer (1953) while their highest rated movie together was Isola Bella (1961). They have not worked together since Black-White-Red Four Poster (1962). They are most known for their comedy films together.