The Great Silence - Copyright Holder

Does anyone have any idea about the copyright holder to this film, specifically the original Italian CR holders? I’m inclined to think that it could be 20th Century Fox or Adelphia Compagnia Cinematografica (the Italian production co.), but I just want to be certain. Also, why is it that Corbucci is credited as producer on this site? Other sources (such as Alex Cox’s 10,000 Ways to Die) state that the producer was Atilio Riccio.

4 posts were merged into an existing topic: The Great Silence / Il grande silenzio (Sergio Corbucci, 1968)