What did M1 's art director executive produce and a actor executive produce
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.film.executive_produced_by ?x1 .
?x0 ns:film.film.executive_produced_by ?x2 .
?x1 a ns:film.actor .
?x2 ns:film.film_art_director.films_art_directed M1
}