How many movies have Jürgen Bretzinger and Wilfried Klaus collaborated on?

They have worked on 2 movies together! Their first movie together was Dr. Mad - Halbtot in weiß (1998) while their highest rated movie together was Alles Verbrecher: Eiskalte Liebe (2014). They have not worked together since Alles Verbrecher: Eiskalte Liebe (2014).