Which person that M1 and M2 employed was a director , art director , and star of M3
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:film.actor.film/ns:film.performance.film M3 .
?x0 ns:film.director.film M3 .
?x0 ns:film.film_art_director.films_art_directed M3 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M2
}