Was a British film director that M1 , M2 , M3 , and M4 influenced M6 's producer
SELECT count(*) WHERE {
?x0 a ns:film.director .
?x0 ns:film.producer.film|ns:film.production_company.films M6 .
?x0 ns:influence.influence_node.influenced_by M1 .
?x0 ns:influence.influence_node.influenced_by M2 .
?x0 ns:influence.influence_node.influenced_by M3 .
?x0 ns:influence.influence_node.influenced_by M4 .
?x0 ns:people.person.nationality ns:m.07ssc
}