Who was a British art director whose sibling played M3 and played M4 , M5 , and M6
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.film_art_director .
?x0 a ns:people.person .
?x0 ns:people.person.nationality ns:m.07ssc .
?x0 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 ?x1 .
?x1 ns:film.actor.film/ns:film.performance.character M3 .
?x1 ns:film.actor.film/ns:film.performance.character M4 .
?x1 ns:film.actor.film/ns:film.performance.character M5 .
?x1 ns:film.actor.film/ns:film.performance.character M6 .
FILTER ( ?x0 != ?x1 )
}