How many movies have Miloš Kalina and Štefan Koller collaborated on?

They have worked on 7 movies together! Their first movie together was Vždy možno začať (1962) while their highest rated movie together was Námestie svätej Alžbety (1966). They have not worked together since Tango pre medveďa (1967). They are most known for their drama films together.