question: Did M3 and M4 star M2 's founder and star a Mexican screenwriter
query: SELECT count(*) WHERE {
  ?x0 a ns:film.writer .
  ?x0 ns:people.person.nationality ns:m.0b90_r .
  ?x1 ns:organization.organization_founder.organizations_founded M2 .
  M3 ns:film.film.starring/ns:film.performance.actor ?x0 .
  M3 ns:film.film.starring/ns:film.performance.actor ?x1 .
  M4 ns:film.film.starring/ns:film.performance.actor ?x0 .
  M4 ns:film.film.starring/ns:film.performance.actor ?x1
  }