How many movies have Olga Blechová and Valérie Čižmárová acted in together?

They have worked on 4 movies together! Their first movie together was Půlnoční kolona (1973) while their highest rated movie together was 'Okay, Boss...!' (1978). They have not worked together since 'Okay, Boss...!' (1978). They are most known for their comedy films together.