How many movies have Pantelis Voulgaris and Takis Giannopoulos collaborated on?

They have worked on 3 movies together! Their first movie together was Happy Day (1976) while their highest rated movie together was Eleftherios Venizelos: 1910-1927 (1980). They have not worked together since The Striker with Number 9 (1988). They are most known for their drama films together.