question: Who was a Canadian art director that M2 was executive produced by , starred , and was written by
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.film_art_director .
  ?x0 a ns:people.person .
  ?x0 ns:film.actor.film/ns:film.performance.film M2 .
  ?x0 ns:film.producer.films_executive_produced M2 .
  ?x0 ns:film.writer.film M2 .
  ?x0 ns:people.person.nationality ns:m.0d060g
  }