How many movies have Jaroslav Dudek and Jaroslav Kotlant collaborated on?

They have worked on 9 movies together! Their first movie together was Hledám paní na hlídání (1975) while their highest rated movie together was Nebožtíci na bále (1980). They have not worked together since Síť na bludičku (1983). They are most known for their comedy films together.