question: Did M3 star M2 's writer and cinematographer and star a Mexican actor
query: SELECT count(*) WHERE {
  ?x0 a ns:film.actor .
  ?x0 ns:people.person.nationality ns:m.0b90_r .
  ?x1 ns:film.cinematographer.film M2 .
  ?x1 ns:film.writer.film M2 .
  M3 ns:film.film.starring/ns:film.performance.actor ?x0 .
  M3 ns:film.film.starring/ns:film.performance.actor ?x1
  }