How many movies have Grit Boettcher and Lina Carstens acted in together?

They have worked on 3 movies together! Their first movie together was Liebling, ich muß dich erschießen (1962) while their highest rated movie together was Er kanns nicht lassen (1962). They have not worked together since Drei Männer im Schnee (1974). They are most known for their crime films together.