question: Which Spanish film director was a producer of M2 's prequel
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.director .
  ?x0 ns:film.producer.film|ns:film.production_company.films ?x1 .
  ?x0 ns:people.person.nationality ns:m.06mkj .
  ?x1 ns:film.film.sequel M2
  }