Was M1 produced by M0 's art director 's employer
SELECT count(*) WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x1 ns:film.film_art_director.films_art_directed M0 .
M1 ns:film.film.produced_by|ns:film.film.production_companies ?x0
}