How many movies have Libuše Havelková and Oldřich Prášil collaborated on?

They have worked on 3 movies together! Their first movie together was Klíčová dírka pro zvědavou princeznu (1970) while their highest rated movie together was Kleofášek (1974). They have not worked together since Kleofášek (1974). They are most known for their family films together.