How many movies have Oldřich Vízner and Petr Hovorka collaborated on?

They have worked on 9 movies together! Their first movie together was Panenka z vltavské tůně (1976) while their highest rated movie together was O chytrém Honzovi (1985). They have not worked together since Sůva z nudlí (2006). They are most known for their family films together.