How many movies have Ivo Popek and Josef Novák-Wajda collaborated on?

They have worked on 4 movies together! Their first movie together was O Nesytovi (1994) while their highest rated movie together was O králi, hvězdáři, kejklíři a třech muzikantech (1996). They have not worked together since Čerte, drž se svého kopyta! (1998). They are most known for their fantasy films together.