How many movies have Andreas Bethmann and Christian Bau collaborated on?

They have worked on 2 movies together! Their first movie together was Notgeile Knastjulen - Zur Unzucht erzogen (2004) while their highest rated movie together was Angel of Death 2: The Prison Island Massacre (2007). They have not worked together since Angel of Death 2: The Prison Island Massacre (2007).