How many movies have Martin Wilke and Stefan Bartmann collaborated on?

They have worked on 6 movies together! Their first movie together was Rosamunde Pilcher: Verlobt, verliebt, verwirrt (2011) while their highest rated movie together was Rosamunde Pilcher: Morgens stürmisch, abends Liebe (2019). They have not worked together since Rosamunde Pilcher: Falsches Leben, wahre Liebe (2020).