Did a British executive producer of M1 , M2 , M3 , and M4 direct and write M0
SELECT count(*) WHERE {
?x0 ns:film.director.film M0 .
?x0 ns:film.producer.films_executive_produced M1 .
?x0 ns:film.producer.films_executive_produced M2 .
?x0 ns:film.producer.films_executive_produced M3 .
?x0 ns:film.producer.films_executive_produced M4 .
?x0 ns:film.writer.film M0 .
?x0 ns:people.person.nationality ns:m.07ssc
}