How many movies have Gerd Baumann and Johann Schuler collaborated on?

They have worked on 3 movies together! Their first movie together was Grave Decisions (2006) while their highest rated movie together was Sau Nummer vier. Ein Niederbayernkrimi (2010). They have not worked together since Sau Nummer vier. Ein Niederbayernkrimi (2010). They are most known for their drama films together.