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