How many movies have Christoph Waltz and Iris Berben acted in together?

They have worked on 4 movies together! Their first movie together was St. Petri Schnee (1991) while their highest rated movie together was Schöne Witwen küssen besser (2004). They have not worked together since Schöne Witwen küssen besser (2004). They are most known for their tv movie films together.