Was M3 influenced by a art director and influenced by a British screenwriter
SELECT count(*) WHERE {
?x0 a ns:film.writer .
?x0 ns:people.person.nationality ns:m.07ssc .
?x1 a ns:film.film_art_director .
M3 ns:influence.influence_node.influenced_by ?x0 .
M3 ns:influence.influence_node.influenced_by ?x1
}