question: What producer of M0 and M1 was founded by a character
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.producer.film|ns:film.production_company.films M0 .
  ?x0 ns:film.producer.film|ns:film.production_company.films M1 .
  ?x0 ns:organization.organization.founders ?x1 .
  ?x1 a ns:fictional_universe.fictional_character
  }