Did M0 's Mexican executive producer executive produce M1 and executive produce a film
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced ?x1 .
?x0 ns:film.producer.films_executive_produced M0 .
?x0 ns:film.producer.films_executive_produced M1 .
?x0 ns:people.person.nationality ns:m.0b90_r .
?x1 a ns:film.film
}