Was a film 's sequel 's star M1 's British art director
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film ?x1 .
?x0 ns:film.film_art_director.films_art_directed M1 .
?x0 ns:people.person.nationality ns:m.07ssc .
?x1 ns:film.film.prequel ?x2 .
?x2 a ns:film.film
}