Was M0 a art director that M2 and M3 were edited by and starred
SELECT count(*) WHERE {
M0 a ns:film.film_art_director .
M0 ns:film.actor.film/ns:film.performance.film M2 .
M0 ns:film.actor.film/ns:film.performance.film M3 .
M0 ns:film.editor.film M2 .
M0 ns:film.editor.film M3
}