What costume designer was a film producer that M2 and M3 were edited and written by
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.film_costumer_designer .
?x0 a ns:film.producer .
?x0 ns:film.editor.film M2 .
?x0 ns:film.editor.film M3 .
?x0 ns:film.writer.film M2 .
?x0 ns:film.writer.film M3
}