How many movies have Normann Büttner and Thorsten Klein collaborated on?

They have worked on 2 movies together! Their first movie together was Five Years (2013) while their highest rated movie together was The Legend of Timm Thaler: or The Boy Who Sold His Laughter (2017). They have not worked together since The Legend of Timm Thaler: or The Boy Who Sold His Laughter (2017).