What person was a director , art director , editor , and writer of M1
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:film.director.film M1 .
?x0 ns:film.editor.film M1 .
?x0 ns:film.film_art_director.films_art_directed M1 .
?x0 ns:film.writer.film M1
}