Was M2 executive produced by a Japanese star of M1 's sequel
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film ?x1 .
?x0 ns:people.person.nationality ns:m.03_3d .
?x1 ns:film.film.prequel M1 .
M2 ns:film.film.executive_produced_by ?x0
}