How many movies have Christiane Blumhoff and Gloria Behrens collaborated on?

They have worked on 2 movies together! Their first movie together was Mama und der Millionär (2005) while their highest rated movie together was Utta Danella - Schokolade im Sommer (2009). They have not worked together since Utta Danella - Schokolade im Sommer (2009).