Were M3 and M4 produced and directed by a British actor of M1 and M2
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.character M1 .
?x0 ns:film.actor.film/ns:film.performance.character M2 .
?x0 ns:people.person.nationality ns:m.07ssc .
M3 ns:film.film.directed_by ?x0 .
M3 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
M4 ns:film.film.directed_by ?x0 .
M4 ns:film.film.produced_by|ns:film.film.production_companies ?x0
}