How many movies have Ladislav Žid and Miroslav Hájek collaborated on?

They have worked on 3 movies together! Their first movie together was A Star Is Falling Upwards (1975) while their highest rated movie together was Píseň o stromu a růži (1979). They have not worked together since Píseň o stromu a růži (1979). They are most known for their music films together.