How many movies have Rudolf Blaháček and Václav Lohniský collaborated on?

They have worked on 3 movies together! Their first movie together was Králíci ve vysoké trávě (1962) while their highest rated movie together was If a Thousand Clarinets (1965). They have not worked together since If a Thousand Clarinets (1965). They are most known for their comedy films together.