How many movies have Franz Schnyder and Heinrich Gretler collaborated on?

They have worked on 9 movies together! Their first movie together was Gilberte de Courgenay (1941) while their highest rated movie together was Heidi und Peter (1955). They have not worked together since Anne Bäbi Jowager, Part 2 - Jakobli and Meyeli (1961). They are most known for their drama films together.