How many movies have Gustav Vondráček and Jan Chaloupek collaborated on?

They have worked on 6 movies together! Their first movie together was Tři chlapi v chalupě (1963) while their highest rated movie together was Who Wants to Kill Jessie? (1966). They have not worked together since Příště budeme chytřejší, staroušku! (1982). They are most known for their comedy films together.