Which company whose founder founded a production company was M1 's employer
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:business.employer .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person M1 .
?x0 ns:organization.organization.founders ?x1 .
?x1 ns:organization.organization_founder.organizations_founded ?x2 .
?x2 a ns:film.production_company
}