How many movies have Karel Marek and Petr Schulhoff collaborated on?

They have worked on 12 movies together! Their first movie together was Silvestrovský trapas (1970) while their highest rated movie together was We'll Kick Up a Fuss Tomorrow, Darling... (1976). They have not worked together since 'Okay, Boss...!' (1978). They are most known for their comedy films together.