Editing Jack Valenti (section)

====Movie rating system====
In 1968, Valenti developed the [[MPAA film rating system]],<ref name="desques">{{cite news |url=https://news.google.com/newspapers?id=-2Y1AAAAIBAJ&pg=5106%2C7197294 |work=Deseret News |location=(Salt Lake City, Utah) |agency=(The Moviegoer) |title=Questionable ratings to gain patronge?|date=October 31, 1968|page=10A}}</ref> which initially comprised four distinct ratings: G, M, [[Motion Picture Association of America film rating system|R]] and [[X-rated|X]]. The M rating was soon replaced by GP, and changed to PG in 1972. The X rating immediately proved troublesome, since it was not trademarked and therefore used freely by the pornographic film industry, with which it became most associated. Mainstream films such as ''[[Midnight Cowboy]]'' and ''[[A Clockwork Orange (film)|A Clockwork Orange]]'' were assumed by the public to be pornographic because they carried the X rating. In 1990, the trademarked "adults only" [[NC-17]] rating was introduced as a replacement for the non-trademarked X-rating. The PG-13 rating was added in 1984 to provide a greater range of distinction for audiences and was first proposed by [[Steven Spielberg]].<ref>{{Cite web|url=https://www.today.com/popculture/pg-13-20-how-indiana-remade-films-wbna5798549|title=PG-13 at 20: How 'Indiana' remade films|website=TODAY.com|date=August 23, 2004 }}</ref>