Was M3 edited by a cinematographer and executive produced by M1 's Canadian art director
SELECT count(*) WHERE {
?x0 ns:film.film_art_director.films_art_directed M1 .
?x0 ns:people.person.nationality ns:m.0d060g .
?x1 a ns:film.cinematographer .
M3 ns:film.film.edited_by ?x1 .
M3 ns:film.film.executive_produced_by ?x0
}