Was M1 's cinematographer employed by M0 and employed by a Canadian screenwriter 's employer
SELECT count(*) WHERE {
?x0 ns:film.cinematographer.film M1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
?x1 ns:business.employer.employees/ns:business.employment_tenure.person ?x2 .
?x2 a ns:film.writer .
?x2 ns:people.person.nationality ns:m.0d060g
}