How many movies have Ersi Fotiou and Petros Lykas collaborated on?

They have worked on 6 movies together! Their first movie together was A Crazy, Crazy 40-Year-Old (1970) while their highest rated movie together was Ένας Νομοταγής Πολίτης (1974). They have not worked together since A Tank on My Bed (1975). They are most known for their comedy films together.