How many movies have Klema Kavánková and Ludvík Ráža collaborated on?

They have worked on 20 movies together! Their first movie together was Když se čerti rojili (1966) while their highest rated movie together was Král, kejklíř a hvězdář (1971). They have not worked together since Spor architekta Zítka (1982). They are most known for their family films together.