How many movies have Elena Nathanail and Kostas Karagiannis collaborated on?

They have worked on 7 movies together! Their first movie together was Volunteer in Eros (1971) while their highest rated movie together was The optimist (1973). They have not worked together since Ένας Τρελός... Τρελός Ονειροπαρμένος (1986). They are most known for their comedy films together.