How many movies have Erich Claunigk and Maria von der Osten-Sacken collaborated on?

They have worked on 3 movies together! Their first movie together was Gute Nacht, Mary (1950) while their highest rated movie together was Ein Herz schlägt für Erika (1956). They have not worked together since Die Stimme der Sehnsucht (1956). They are most known for their drama films together.