How many movies have Trude Ulrich and Wilhelm Gernhardt collaborated on?

They have worked on 6 movies together! Their first movie together was Die sieben Kleider der Katrin (1954) while their highest rated movie together was Wenn die Alpenrosen blüh'n (1955). They have not worked together since Der Glockengießer von Tirol (1956). They are most known for their drama films together.