Were M3 and M4 executive produced by a British film director that a film was produced by and was executive produced by
SELECT count(*) WHERE {
?x0 a ns:film.director .
?x0 ns:film.producer.films_executive_produced ?x1 .
?x0 ns:film.producer.film|ns:film.production_company.films ?x1 .
?x0 ns:people.person.nationality ns:m.07ssc .
?x1 a ns:film.film .
M3 ns:film.film.executive_produced_by ?x0 .
M4 ns:film.film.executive_produced_by ?x0
}