How many movies have Christos Natsios and Pavlos Filippou collaborated on?

They have worked on 3 movies together! Their first movie together was Yes, But... (1972) while their highest rated movie together was Ο Τελευταίος... Μπάτσος (1987). They have not worked together since Ο Τελευταίος... Μπάτσος (1987). They are most known for their drama films together.