Did M4 produce and direct a film that was directed by M2 and M3 and starred M1
SELECT count(*) WHERE {
?x0 a ns:film.film .
?x0 ns:film.film.directed_by M2 .
?x0 ns:film.film.directed_by M3 .
?x0 ns:film.film.starring/ns:film.performance.actor M1 .
M4 ns:film.director.film ?x0 .
M4 ns:film.producer.film|ns:film.production_company.films ?x0
}