What film director whose child produced a film did M1 , M2 , and M3 star
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.director .
?x0 ns:film.actor.film/ns:film.performance.film M1 .
?x0 ns:film.actor.film/ns:film.performance.film M2 .
?x0 ns:film.actor.film/ns:film.performance.film M3 .
?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x1 .
?x1 ns:film.producer.film|ns:film.production_company.films ?x2 .
?x2 a ns:film.film
}