How many movies have Viktor Knapp and Zbyněk Hloch collaborated on?

They have worked on 4 movies together! Their first movie together was Psíčci lorda Carltona (1970) while their highest rated movie together was Tetička za všechny peníze (1973). 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.