Was a prequel of M0 directed by and produced by M1 's producer
SELECT count(*) WHERE {
?x0 ns:film.film.directed_by ?x1 .
?x0 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
?x0 ns:film.film.sequel M0 .
?x1 ns:film.producer.film|ns:film.production_company.films M1
}