How many movies have Konstantin Graudus and Zoltan Spirandelli collaborated on?

They have worked on 3 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 Vaya con Dios (2002). They are most known for their comedy films together.