[3] It is best known for creating and producing the Star Wars and Indiana Jones franchises, as well as its leadership in developing special effects, sound, and computer animation for films.[12] That year, Lucas hired Los Angeles-based real-estate specialist Charles Weber to manage the company, telling him that he could keep the job as long as he made money.[14] Despite the third film achieving similar classic status to its two predecessors, George was unhappy with the cinema presentation of Return of the Jedi, he created the company THX, which was unveiled on May 20, 1983.In 1992, after viewing an early computer-generated imagery test created by Industrial Light & Magic (ILM) for Jurassic Park, Lucas announced his intentions to produce a Star Wars Prequel Trilogy.In addition to the prequels, Lucas released the Special Editions for the Star Wars Original Trilogy in 1997, 2004 and 2011, for VHS, DVD and Blu-ray, which were met with increasingly negative reception.In 1987, the company, which at that time, was expanding from three to five films a year on its own, decided to increase making its Northern California production facilities available to other filmmakers.[25][26] In June 2012, it was announced that Kathleen Kennedy, a long-term collaborator with Steven Spielberg and a producer of the Indiana Jones films, had been appointed as co-chair of Lucasfilm Ltd.It was reported that Kennedy would work alongside Lucas, who would remain chief executive and serve as co-chairman for at least one year, after which she would succeed him as the company's chairperson, which she did in June 2013.[27] On July 8, 2012, Lucasfilm's marketing, online, and licensing units moved into the new Letterman Digital Arts Center located in the Presidio in San Francisco.[41] On December 4, 2012, the Disney-Lucasfilm merger was approved by the Federal Trade Commission (FTC), allowing the acquisition to be finalized without dealing with antitrust problems.[48] In early 2013, Disney CEO Bob Iger disclosed Lucasfilm's plans to release standalone Star Wars films alongside the Sequel Trilogy over a six-year period.[59][50][51] After the mixed performance of Solo at the box office, Disney CEO Bob Iger confirmed a slow down in release of new Star Wars films.