question: Was a film 's producer acquired by M0 and M1
query: SELECT count(*) WHERE {
  ?x0 ns:film.producer.film|ns:film.production_company.films ?x1 .
  ?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M0 .
  ?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M1 .
  ?x1 a ns:film.film
  }