Did M3 star a film producer that M1 employed and a production company was founded by and star M4
SELECT count(*) WHERE {
?x0 a ns:film.producer .
?x0 ns:organization.organization_founder.organizations_founded ?x1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
?x1 a ns:film.production_company .
M3 ns:film.film.starring/ns:film.performance.actor ?x0 .
M3 ns:film.film.starring/ns:film.performance.actor M4
}