How many movies have Heinrich Gretler and Jeremias Gotthelf collaborated on?

They have worked on 4 movies together! Their first movie together was Uli der Knecht (1954) while their highest rated movie together was The Cheese Factory in the Hamlet (1958). They have not worked together since Anne Bäbi Jowager, Part 2 - Jakobli and Meyeli (1961). They are most known for their comedy films together.