How many movies have Miloš Kopecký and Viktor Knapp collaborated on?

They have worked on 6 movies together! Their first movie together was Kočár nejsvětější svátosti (1963) while their highest rated movie together was Jak se dělá divadlo (1970). They have not worked together since Kufr čili Silvestrovské kousky Miloše Kopeckého a Františka Filipovského (1973). They are most known for their comedy films together.