How many movies have Jarmila Gerlová and Jaroslav Dietl collaborated on?

They have worked on 5 movies together! Their first movie together was Bylo čtvrt a bude půl (1968) while their highest rated movie together was Silvestr 1978 (1978). They have not worked together since Silvestr 1978 (1978). They are most known for their comedy films together.