How many movies have Dorothea Parton and Erni Mangold acted in together?

They have worked on 4 movies together! Their first movie together was Bauernprinzessin I (2004) while their highest rated movie together was Bauernprinzessin III - In der Zwickmühle (2009). They have not worked together since Kottan ermittelt: Rien ne va plus (2010). They are most known for their drama films together.