Were M2 , M3 , and M4 founded by a British star of a film
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film ?x1 .
?x0 ns:people.person.nationality ns:m.07ssc .
?x1 a ns:film.film .
M2 ns:organization.organization.founders ?x0 .
M3 ns:organization.organization.founders ?x0 .
M4 ns:organization.organization.founders ?x0
}