Which art director that M1 was written and edited by was a film 's editor
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.film_art_director .
?x0 ns:film.editor.film ?x1 .
?x0 ns:film.editor.film M1 .
?x0 ns:film.writer.film M1 .
?x1 a ns:film.film
}