Did M2 star M0 's art director and star M1 's employee
SELECT count(*) WHERE {
?x0 ns:film.film_art_director.films_art_directed M0 .
?x1 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
M2 ns:film.film.starring/ns:film.performance.actor ?x0 .
M2 ns:film.film.starring/ns:film.performance.actor ?x1
}