RKO is often viewed as the forgotten child of Hollywood, despite being the studio behind some of this industry’s most celebrated films like “Citizen Kane,” “King Kong” and “The Hunchback of Notre Dame,” while employing Golden Era luminaries Cary Grant, Katharine Hepburn, Fred Astaire and Ginger Rogers. Its status in the dustbin of Hollywood history is largely due to the fact that it hasn’t been a functioning studio — save for a few, mostly unsuccessful, attempts at a revival — since Howard Hughes sold it to the General Tire and Rubber Company in 1955. (Ask anyone old enough to remember Hughes’ ownership of RKO and you’ll likely get more than a few four-letter words.) Tim Curry as Dr. Frank-N-Furter standing inside a radio tower with the words “An RKO Radio Picture” in the background. 20th Century Fox Film Corp. All rights reserved.…