How many movies have Cristoph Hahn and Marco Porsia collaborated on?

They have worked on 2 movies together! Their first movie together was Swans: The Seer - Live DVD (2012) while their highest rated movie together was Swans: The Glowing Man - Live 2015 DVD (2016). They have not worked together since Swans: The Glowing Man - Live 2015 DVD (2016).