Was M3 a film whose Italian writer and editor edited M0 and M1
SELECT count(*) WHERE {
?x0 ns:film.editor.film M0 .
?x0 ns:film.editor.film M1 .
?x0 ns:people.person.nationality ns:m.03rjj .
M3 a ns:film.film .
M3 ns:film.film.edited_by ?x0 .
M3 ns:film.film.written_by ?x0
}