What did a star of M1 and M2 direct and M0 's editor direct
SELECT DISTINCT ?x0 WHERE {
?x0 ns:film.film.directed_by ?x1 .
?x0 ns:film.film.directed_by ?x2 .
?x1 ns:film.editor.film M0 .
?x2 ns:film.actor.film/ns:film.performance.film M1 .
?x2 ns:film.actor.film/ns:film.performance.film M2
}