How many movies have Wiebke Kratz and Wolf Dietrich Peters-Vallerius collaborated on?

They have worked on 4 movies together! Their first movie together was Ein Vater zum Verlieben (2001) while their highest rated movie together was Der Mann, den Frauen wollen (2005). They have not worked together since Meine bezaubernde Nanny (2006). They are most known for their comedy films together.