question: What screenwriter was a cinematographer , director , editor , and art director of M1 and M2
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.writer .
  ?x0 ns:film.cinematographer.film M1 .
  ?x0 ns:film.cinematographer.film M2 .
  ?x0 ns:film.director.film M1 .
  ?x0 ns:film.director.film M2 .
  ?x0 ns:film.editor.film M1 .
  ?x0 ns:film.editor.film M2 .
  ?x0 ns:film.film_art_director.films_art_directed M1 .
  ?x0 ns:film.film_art_director.films_art_directed M2
  }