How many movies have Vít Hrubín and Zbyněk Vavřín collaborated on?

They have worked on 4 movies together! Their first movie together was Ty hvězdičko malá aneb Kterak Pepíček s Terezkou přece jen ke štěstí přišli (1973) and was their highest rated movie together. They have not worked together since Dům pro Helenu (1979). They are most known for their music films together.