How many movies have Gerhard Schirlo and Marian Redmann collaborated on?

They have worked on 2 movies together! Their first movie together was Geisterstunde - Fahrstuhl ins Jenseits (1997) while their highest rated movie together was Jack the Ripper: The London Slasher (2016). They have not worked together since Jack the Ripper: The London Slasher (2016).