How many movies have Marcela Baťková and Miroslav Hájek collaborated on?

They have worked on 4 movies together! Their first movie together was Ticho! Ticho! Ticho! (1963) while their highest rated movie together was If a Thousand Clarinets (1965). They have not worked together since A Star Is Falling Upwards (1975). They are most known for their comedy films together.