What did a film producer that played M1 and played M2 and M3 found
SELECT DISTINCT ?x0 WHERE {
?x0 ns:organization.organization.founders ?x1 .
?x1 a ns:film.producer .
?x1 ns:film.actor.film/ns:film.performance.character M1 .
?x1 ns:film.actor.film/ns:film.performance.character M2 .
?x1 ns:film.actor.film/ns:film.performance.character M3
}