How many movies have Joo Fürst and Volkhart Buff collaborated on?

They have worked on 3 movies together! Their first movie together was Deathline (1996) while their highest rated movie together was Resident Evil (2002). They have not worked together since 1½ Ritter - Auf der Suche nach der hinreißenden Herzelinde (2008). They are most known for their action films together.