Who founded a film producer , was employed by M1 's producer , and founded a company
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:people.person .
?x0 ns:organization.organization_founder.organizations_founded ?x1 .
?x0 ns:organization.organization_founder.organizations_founded ?x2 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x3 .
?x1 a ns:film.producer .
?x2 a ns:business.employer .
?x3 ns:film.producer.film|ns:film.production_company.films M1
}