How many movies have Dieter Kehler and Volker Lechtenbrink collaborated on?

They have worked on 2 movies together! Their first movie together was Rosamunde Pilcher: Klippen der Liebe (1999) while their highest rated movie together was Rosamunde Pilcher: Der Mann meiner Träume (2007). They have not worked together since Rosamunde Pilcher: Der Mann meiner Träume (2007).