question: Did M3 star a British Italian screenwriter
query: SELECT count(*) WHERE {
  ?x0 a ns:film.writer .
  ?x0 ns:people.person.nationality ns:m.03rjj .
  ?x0 ns:people.person.nationality ns:m.07ssc .
  M3 ns:film.film.starring/ns:film.performance.actor ?x0
  }