How many movies have Ingo Ehrlich and Maurus Ronner collaborated on?

They have worked on 3 movies together! Their first movie together was Das Glück der Anderen (2014) while their highest rated movie together was Eltern allein zu Haus: Die Schröders (2017). They have not worked together since Eltern allein zu Haus: Die Winters (2017). They are most known for their romance films together.