How many movies have Giuseppe Viola and Sylva Koscina collaborated on?

They have worked on 1 movie together! Their first movie together was Il cav. Costante Nicosia demoniaco, ovvero Dracula in Brianza (1975) and was their highest rated movie together. They have not worked together since Il cav. Costante Nicosia demoniaco, ovvero Dracula in Brianza (1975).