How many movies have Christos Efthimiou and Kostas Papageorgiou acted in together?

They have worked on 1 movie together! Their first movie together was Σας ζητούν στο τηλέφωνο (1934) and was their highest rated movie together. They have not worked together since Σας ζητούν στο τηλέφωνο (1934).