How many movies have Dimitris Lavdas and Dimitris Zannidis collaborated on?

They have worked on 1 movie together! Their first movie together was Άκρως απόρρητον - Υπόθεσις Ερμής (1967) and was their highest rated movie together. They have not worked together since Άκρως απόρρητον - Υπόθεσις Ερμής (1967).