Was a art director of M3 's sequel a film producer that M1 and M2 were directed by and starred
SELECT count(*) WHERE {
?x0 a ns:film.producer .
?x0 ns:film.actor.film/ns:film.performance.film M1 .
?x0 ns:film.actor.film/ns:film.performance.film M2 .
?x0 ns:film.director.film M1 .
?x0 ns:film.director.film M2 .
?x0 ns:film.film_art_director.films_art_directed ?x1 .
?x1 ns:film.film.prequel M3
}