How many movies have Konstantin Graudus and Michael Illner collaborated on?

They have worked on 2 movies together! Their first movie together was Ufos über Waterlow (1998) while their highest rated movie together was Verbotenes Verlangen - Ich liebe meinen Schüler (2000). They have not worked together since Verbotenes Verlangen - Ich liebe meinen Schüler (2000).