What was written by and executive produced by a art director that M1 and M2 starred
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.film.executive_produced_by ?x1 .
?x0 ns:film.film.written_by ?x1 .
?x1 a ns:film.film_art_director .
?x1 ns:film.actor.film/ns:film.performance.film M1 .
?x1 ns:film.actor.film/ns:film.performance.film M2
}