question: Which Canadian screenwriter that M3 starred and was produced by was M1 's founder
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.writer .
  ?x0 ns:film.actor.film/ns:film.performance.film M3 .
  ?x0 ns:film.producer.film|ns:film.production_company.films M3 .
  ?x0 ns:organization.organization_founder.organizations_founded M1 .
  ?x0 ns:people.person.nationality ns:m.0d060g
  }