How many movies have Gianni Boncompagni and Maria Giovanna Elmi collaborated on?

They have worked on 2 movies together! Their first movie together was Morto Troisi, viva Troisi! (1982) and was their highest rated movie together. They have not worked together since FF.SS. cioè '...che mi hai portato a fare sopra a Posillipo se non mi vuoi più bene?' (1983).