Was M3 edited by , written by , directed by , and executive produced by a American Mexican person
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x0 ns:people.person.nationality ns:m.09c7w0 .
?x0 ns:people.person.nationality ns:m.0b90_r .
M3 ns:film.film.directed_by ?x0 .
M3 ns:film.film.edited_by ?x0 .
M3 ns:film.film.executive_produced_by ?x0 .
M3 ns:film.film.written_by ?x0
}