Which film producer that M3 's prequel 's director was employed by and M2 was employed by did M1 found
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.producer .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person M2 .
?x0 ns:organization.organization.founders M1 .
?x1 ns:film.director.film ?x2 .
?x2 ns:film.film.sequel M3
}