How many movies have Jan Chaloupek and Jiří Vojta collaborated on?

They have worked on 6 movies together! Their first movie together was Vím, že jsi vrah... (1972) while their highest rated movie together was We'll Kick Up a Fuss Tomorrow, Darling... (1976). They have not worked together since Diagnóza smrti (1979). They are most known for their comedy films together.