How many movies have Naďa Urbánková and Stella Zázvorková acted in together?

They have worked on 9 movies together! Their first movie together was Sedm žen Alfonse Karáska aneb Když holky berou, já nevím kterou (1967) while their highest rated movie together was Silvestr 1978 (1978). They have not worked together since Larks on a String (1990). They are most known for their music films together.