How many movies have Helmut Metzger and Thomas Unger collaborated on?

They have worked on 3 movies together! Their first movie together was Katie Fforde - Diagnose Liebe (2012) while their highest rated movie together was Katie Fforde - Zimmer mit Meerblick (2018). They have not worked together since Katie Fforde - Zimmer mit Meerblick (2018). They are most known for their romance films together.