How many movies have Lea Janečková and Vlasta Janečková collaborated on?

They have worked on 10 movies together! Their first movie together was Kacafírek (1966) while their highest rated movie together was O princezně, která pořád vařila (1967). They have not worked together since Burácení s Burácem (1981). They are most known for their fantasy films together.