Did M1 's Mexican actor write M2 's prequel
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.character M1 .
?x0 ns:film.writer.film ?x1 .
?x0 ns:people.person.nationality ns:m.0b90_r .
?x1 ns:film.film.sequel M2
}