Was a production company founded by M1 and M2 , founded by M3 , and founded by M5 's British producer
SELECT count(*) WHERE {
?x0 a ns:film.production_company .
?x0 ns:organization.organization.founders ?x1 .
?x0 ns:organization.organization.founders M1 .
?x0 ns:organization.organization.founders M2 .
?x0 ns:organization.organization.founders M3 .
?x1 ns:film.producer.film|ns:film.production_company.films M5 .
?x1 ns:people.person.nationality ns:m.07ssc
}