How many movies have Božena Lesáková and František Němec collaborated on?

They have worked on 13 movies together! Their first movie together was Já nechci být víla! (1978) while their highest rated movie together was Žáku Kašíku, nežeň se! (1985). They have not worked together since O těch Martinových dudách (1991). They are most known for their family films together.