What Canadian director of M2 's prequel did M0 employ
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.director.film ?x1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
?x0 ns:people.person.nationality ns:m.0d060g .
?x1 ns:film.film.sequel M2
}