How many movies have Jan Fedder and Markus Trebitsch collaborated on?

They have worked on 6 movies together! Their first movie together was Der Mann im Strom (2006) while their highest rated movie together was Die Zürcher Verlobung - Drehbuch zur Liebe (2007). They have not worked together since Der Hafenpastor und das Blaue vom Himmel (2016). They are most known for their drama films together.