Was a sequel of M0 directed by and executive produced by M1 's executive producer and star
SELECT count(*) WHERE {
?x0 ns:film.film.directed_by ?x1 .
?x0 ns:film.film.executive_produced_by ?x1 .
?x0 ns:film.film.prequel M0 .
?x1 ns:film.actor.film/ns:film.performance.film M1 .
?x1 ns:film.producer.films_executive_produced M1
}