Was M4 a British screenwriter whose parent produced M0 , M1 , and M2 and directed M3 's prequel
SELECT count(*) WHERE {
?x0 ns:film.director.film ?x1 .
?x0 ns:film.producer.film|ns:film.production_company.films M0 .
?x0 ns:film.producer.film|ns:film.production_company.films M1 .
?x0 ns:film.producer.film|ns:film.production_company.films M2 .
?x1 ns:film.film.sequel M3 .
M4 a ns:film.writer .
M4 ns:people.person.nationality ns:m.07ssc .
M4 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent ?x0
}