How many movies have Dieter Salzmann and Nina Grosse collaborated on?

They have worked on 3 movies together! Their first movie together was 21 Liebesbriefe (2004) while their highest rated movie together was Franziskas Gespür für Männer (2006). They have not worked together since Liebe und andere Gefahren (2009). They are most known for their tv movie films together.