Was a Mexican screenwriter that edited and wrote M2 and M3 M0
SELECT count(*) WHERE {
M0 a ns:film.writer .
M0 ns:film.editor.film M2 .
M0 ns:film.editor.film M3 .
M0 ns:film.writer.film M2 .
M0 ns:film.writer.film M3 .
M0 ns:people.person.nationality ns:m.0b90_r
}