Was a editor of M1 and M2 a male art director of a prequel of M3
SELECT count(*) WHERE {
?x0 ns:film.editor.film M1 .
?x0 ns:film.editor.film M2 .
?x0 ns:film.film_art_director.films_art_directed ?x1 .
?x0 ns:people.person.gender ns:m.05zppz .
?x1 ns:film.film.sequel M3
}