Did M1 employ a film 's producer , director , and star
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film ?x1 .
?x0 ns:film.director.film ?x1 .
?x0 ns:film.producer.film|ns:film.production_company.films ?x1 .
?x1 a ns:film.film .
M1 ns:business.employer.employees/ns:business.employment_tenure.person ?x0
}