How many movies have Martin Grube and Simone Bär collaborated on?

They have worked on 3 movies together! Their first movie together was Ein Koala-Bär allein zu Haus (2005) while their highest rated movie together was Tödliche Geheimnisse - Das Versprechen (2020). They have not worked together since Tödliche Geheimnisse - Das Versprechen (2020).