How many movies have Kostas Petridis and Mihalis Diamantopoulos collaborated on?

They have worked on 20 movies together! Their first movie together was A Pitiful Don Juan (1960) while their highest rated movie together was Ο αντιφασίστας (1972). They have not worked together since Ένας τρελός τρελός αεροπειρατής (1973). They are most known for their comedy films together.