Did M2 employ M1 's British star , employ M3 , employ M4 , and employ M5
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film M1 .
?x0 ns:people.person.nationality ns:m.07ssc .
M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
M2 ns:business.employer.employees/ns:business.employment_tenure.person M3 .
M2 ns:business.employer.employees/ns:business.employment_tenure.person M4 .
M2 ns:business.employer.employees/ns:business.employment_tenure.person M5
}