How many movies have Michael Kobr and Rainer Kaufmann collaborated on?

They have worked on 3 movies together! Their first movie together was Erntedank (2009) while their highest rated movie together was Milchgeld. Ein Kluftingerkrimi (2012). They have not worked together since Seegrund. Ein Kluftingerkrimi (2013). They are most known for their crime films together.