How many movies have František Marek and Ivan Olbracht collaborated on?

They have worked on 3 movies together! Their first movie together was Nikola Shuhai (1947) while their highest rated movie together was Zločin v Modré hvězdě (1974). They have not worked together since Zločin v Modré hvězdě (1974). They are most known for their drama films together.