What Mexican director of M1 and M2 was a film 's writer
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.director.film M1 .
?x0 ns:film.director.film M2 .
?x0 ns:film.writer.film ?x1 .
?x0 ns:people.person.nationality ns:m.0b90_r .
?x1 a ns:film.film
}