Were M2 and M3 founded by a company 's employee and founded by a star of M1
SELECT count(*) WHERE {
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x1 a ns:business.employer .
?x2 ns:film.actor.film/ns:film.performance.film M1 .
M2 ns:organization.organization.founders ?x0 .
M2 ns:organization.organization.founders ?x2 .
M3 ns:organization.organization.founders ?x0 .
M3 ns:organization.organization.founders ?x2
}