Was M1 written and directed by a film director that M0 was directed by and starred
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film M0 .
?x0 ns:film.director.film M0 .
M1 ns:film.film.directed_by ?x0 .
M1 ns:film.film.written_by ?x0
}