Was a film produced by M1 and M2 and produced by a costume designer 's parent
SELECT count(*) WHERE {
?x0 a ns:film.film .
?x0 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
?x0 ns:film.film.produced_by|ns:film.film.production_companies M1 .
?x0 ns:film.film.produced_by|ns:film.film.production_companies M2 .
?x1 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x2 .
?x2 a ns:film.film_costumer_designer
}