What did a Canadian person that was employed by a producer of M3 and founded M1 produce
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
?x1 a ns:people.person .
?x1 ns:organization.organization_founder.organizations_founded M1 .
?x1 ns:people.person.employment_history/ns:business.employment_tenure.company ?x2 .
?x1 ns:people.person.nationality ns:m.0d060g .
?x2 ns:film.producer.film|ns:film.production_company.films M3
}