How many movies have Joe D'Amato and Mario Ciccarella collaborated on?

They have worked on 2 movies together! Their first movie together was Django and Sartana Are Coming... It's the End (1970) while their highest rated movie together was Papaya: Love Goddess of the Cannibals (1978). They have not worked together since Papaya: Love Goddess of the Cannibals (1978).