Which American parent of M1 was a employee of a film producer
SELECT DISTINCT ?x0 WHERE {
?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child M1 .
?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
?x0 ns:people.person.nationality ns:m.09c7w0 .
?x1 a ns:film.producer
}