How many movies have Christos Giannakopoulos and Giorgos Gavriilidis collaborated on?

They have worked on 7 movies together! Their first movie together was A Hero in His Slippers (1958) while their highest rated movie together was The Policeman of the 16th Precinct (1959). They have not worked together since A Crazy, Crazy 40-Year-Old (1970). They are most known for their comedy films together.