Was a Mexican actor of M2 and M3 a film producer that influenced M4 's star and writer
SELECT count(*) WHERE {
?x0 a ns:film.producer .
?x0 ns:film.actor.film/ns:film.performance.character M2 .
?x0 ns:film.actor.film/ns:film.performance.character M3 .
?x0 ns:influence.influence_node.influenced ?x1 .
?x0 ns:people.person.nationality ns:m.0b90_r .
?x1 ns:film.actor.film/ns:film.performance.film M4 .
?x1 ns:film.writer.film M4
}