Was a French actor of M2 and M3 a art director
SELECT count(*) WHERE {
?x0 a ns:film.film_art_director .
?x0 ns:film.actor.film/ns:film.performance.character M2 .
?x0 ns:film.actor.film/ns:film.performance.character M3 .
?x0 ns:people.person.nationality ns:m.0f8l9c
}