How many movies have Karel Koš and Vítězslav Černý acted in together?

They have worked on 4 movies together! Their first movie together was Never Strike A Woman... Even with A Flower (1967) while their highest rated movie together was Ta naše písnička česká (1967). They have not worked together since Adela Has Not Had Supper Yet (1978). They are most known for their comedy films together.