question: What did M0 write and a Mexican film producer that directed M3 write
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.film.written_by ?x1 .
  ?x0 ns:film.film.written_by M0 .
  ?x1 a ns:film.producer .
  ?x1 ns:film.director.film M3 .
  ?x1 ns:people.person.nationality ns:m.0b90_r
  }