How many movies have Martin Stock and Pia Strietmann collaborated on?

They have worked on 3 movies together! Their first movie together was A Family of Three (2012) while their highest rated movie together was Mein Sohn, der Klugscheißer (2016). They have not worked together since Mein Sohn, der Klugscheißer (2016). They are most known for their drama films together.