Was M2 executive produced by a French art director and directed by M3 and M4
SELECT count(*) WHERE {
?x0 a ns:film.film_art_director .
?x0 ns:people.person.nationality ns:m.0f8l9c .
M2 ns:film.film.directed_by M3 .
M2 ns:film.film.directed_by M4 .
M2 ns:film.film.executive_produced_by ?x0
}