question: Was a actor of M2 and M3 M0 's Canadian executive producer
query: SELECT count(*) WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.character M2 .
  ?x0 ns:film.actor.film/ns:film.performance.character M3 .
  ?x0 ns:film.producer.films_executive_produced M0 .
  ?x0 ns:people.person.nationality ns:m.0d060g
  }