Did a country of nationality of M3 's star and director employ M0 , employ M1 , and employ M2
SELECT count(*) WHERE {
?x0 ^ns:people.person.nationality ?x1 .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person M0 .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person M1 .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person M2 .
?x1 ns:film.actor.film/ns:film.performance.film M3 .
?x1 ns:film.director.film M3
}