How many movies have Katharina Böhm and Rolf Silber collaborated on?

They have worked on 4 movies together! Their first movie together was Ein Sommertraum (2001) while their highest rated movie together was Das Geheimnis in Siebenbürgen (2012). They have not worked together since Das Geheimnis in Siebenbürgen (2012). They are most known for their tv movie films together.