How many movies have Jan Kraus and Ruth Čálková collaborated on?

They have worked on 3 movies together! Their first movie together was How to Drown Dr. Mracek, the Lawyer (1975) while their highest rated movie together was Dva muži hlásí příchod (1975). They have not worked together since Dva muži hlásí příchod (1975). They are most known for their comedy films together.