Did M3 star a art director , star a British person , and star M4
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:people.person.nationality ns:m.07ssc .
?x1 a ns:film.film_art_director .
M3 ns:film.film.starring/ns:film.performance.actor ?x0 .
M3 ns:film.film.starring/ns:film.performance.actor ?x1 .
M3 ns:film.film.starring/ns:film.performance.actor M4
}