How many movies have Ralf Strohschein and Ralph Herforth collaborated on?

They have worked on 1 movie together! Their first movie together was 1½ Ritter - Auf der Suche nach der hinreißenden Herzelinde (2008) and was their highest rated movie together. They have not worked together since 1½ Ritter - Auf der Suche nach der hinreißenden Herzelinde (2008).