What was written by a Canadian film director and executive produced by M0 's art director
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.film.executive_produced_by ?x1 .
?x0 ns:film.film.written_by ?x2 .
?x1 ns:film.film_art_director.films_art_directed M0 .
?x2 a ns:film.director .
?x2 ns:people.person.nationality ns:m.0d060g
}