Which Canadian person was employed by M1 and employed by M3 's distributor
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
?x0 ns:people.person.nationality ns:m.0d060g .
?x1 ns:film.film_distributor.films_distributed/ns:film.film_film_distributor_relationship.film M3
}