question: Which film was written by a art director and written by M2 's American editor
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.film .
  ?x0 ns:film.film.written_by ?x1 .
  ?x0 ns:film.film.written_by ?x2 .
  ?x1 ns:film.editor.film M2 .
  ?x1 ns:people.person.nationality ns:m.09c7w0 .
  ?x2 a ns:film.film_art_director
  }