How many movies have Antonín Holub and Vladimír Novotný collaborated on?

They have worked on 6 movies together! Their first movie together was Psíčci lorda Carltona (1970) while their highest rated movie together was The Girl on the Broomstick (1972). They have not worked together since How to Drown Dr. Mracek, the Lawyer (1975). They are most known for their comedy films together.