Did a British art director of M3 edit M0 and M1
SELECT count(*) WHERE {
?x0 ns:film.editor.film M0 .
?x0 ns:film.editor.film M1 .
?x0 ns:film.film_art_director.films_art_directed M3 .
?x0 ns:people.person.nationality ns:m.07ssc
}