Was M0 's Chinese British writer M3 's actor
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.character M3 .
?x0 ns:film.writer.film M0 .
?x0 ns:people.person.nationality ns:m.07ssc .
?x0 ns:people.person.nationality ns:m.0d05w3
}