How many movies have Dimitris Papakonstadis and Grigorios Xenopoulos collaborated on?

They have worked on 1 movie together! Their first movie together was Όλοι οι άνδρες ειναι ίδιοι (1966) and was their highest rated movie together. They have not worked together since Όλοι οι άνδρες ειναι ίδιοι (1966).