What was directed by M3 's sibling and executive produced by a screenwriter that founded M1 and M2
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.film.directed_by ?x1 .
?x0 ns:film.film.executive_produced_by ?x2 .
?x1 ns:people.person.sibling_s/ns:people.sibling_relationship.sibling|ns:fictional_universe.fictional_character.siblings/ns:fictional_universe.sibling_relationship_of_fictional_characters.siblings M3 .
?x2 a ns:film.writer .
?x2 ns:organization.organization_founder.organizations_founded M1 .
?x2 ns:organization.organization_founder.organizations_founded M2 .
FILTER ( ?x1 != M3 )
}