question: Was M3 a Italian American film producer 's employer
query: SELECT count(*) WHERE {
  ?x0 a ns:film.producer .
  ?x0 ns:people.person.nationality ns:m.03rjj .
  ?x0 ns:people.person.nationality ns:m.09c7w0 .
  M3 ns:business.employer.employees/ns:business.employment_tenure.person ?x0
  }