Some like it really hot. “Blonde,” the long-awaited Marilyn Monroe biopic starring Ana de Armas, will reportedly serve as Netflix’s first original film to be rated NC-17. The rating, seen on Motion Picture Association’s Classification and Rating Administration bulletin, says the film will receive the rare rating “for some sexual content.” This designation would be a first for the streaming service, according to The Playlist. Director Andrew Dominik, who also penned the script based on Joyce Carol Oates’ book of the same name, told Screen Daily last month that the would-be U.S. rating was “a bu…