question: What was directed by and written by a Mexican costume designer
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.film.directed_by ?x1 .
  ?x0 ns:film.film.written_by ?x1 .
  ?x1 a ns:film.film_costumer_designer .
  ?x1 ns:people.person.nationality ns:m.0b90_r
  }