Did a film producer employ M1 's producer and employ a actor
SELECT count(*) WHERE {
?x0 a ns:film.producer .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x2 .
?x1 ns:film.producer.film|ns:film.production_company.films M1 .
?x2 a ns:film.actor
}