How many movies have Bedřich Čermák and Oldřich Velen collaborated on?

They have worked on 15 movies together! Their first movie together was 90° in the Shade (1965) while their highest rated movie together was Dva muži hlásí příchod (1975). They have not worked together since The Death of a Talented Cobbler (1983). They are most known for their comedy films together.