How many movies have Dieter Kehler and Gabriele Kister collaborated on?

They have worked on 4 movies together! Their first movie together was Rosamunde Pilcher: Wenn nur noch Liebe zählt (2002) while their highest rated movie together was Rosamunde Pilcher: Traum eines Sommers (2004). They have not worked together since Rebecca Ryman - Wer Liebe verspricht (2008). They are most known for their drama films together.