Did a sequel of M2 's sequel star M0 and M1
SELECT count(*) WHERE {
?x0 ns:film.film.prequel ?x1 .
?x0 ns:film.film.starring/ns:film.performance.actor M0 .
?x0 ns:film.film.starring/ns:film.performance.actor M1 .
?x1 ns:film.film.prequel M2
}