How many movies have Gunter Otto and Ursula Barlen collaborated on?

They have worked on 2 movies together! Their first movie together was St. Pauli Herbertstraße (1965) while their highest rated movie together was Liebesgrüße aus der Lederhose 6: Eine Mutter namens Waldemar (1982). They have not worked together since Liebesgrüße aus der Lederhose 6: Eine Mutter namens Waldemar (1982).