question: Was M1 's prequel 's writer , executive producer , art director , and star a film producer
query: SELECT count(*) WHERE {
  ?x0 a ns:film.producer .
  ?x0 ns:film.actor.film/ns:film.performance.film ?x1 .
  ?x0 ns:film.film_art_director.films_art_directed ?x1 .
  ?x0 ns:film.producer.films_executive_produced ?x1 .
  ?x0 ns:film.writer.film ?x1 .
  ?x1 ns:film.film.sequel M1
  }