Was M2 a actor whose sibling directed M0 and executive produced a film
SELECT count(*) WHERE {
?x0 ns:film.director.film M0 .
?x0 ns:film.producer.films_executive_produced ?x1 .
?x1 a ns:film.film .
FILTER ( M2 != ?x0 ) .
M2 a ns:film.actor .
M2 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 ?x0
}