How many movies have Richy Müller and Wolfgang Groos collaborated on?

They have worked on 3 movies together! Their first movie together was Fandango - Members Only (2000) while their highest rated movie together was Vampire Sisters 2: Bats in the Belly (2014). They have not worked together since Vampire Sisters 2: Bats in the Belly (2014). They are most known for their fantasy films together.