Reviewing the NC-17 Film Rating: Clear Guide or an X by a New Name? - The New York Times

A History of the X and NC-17 Ratings – The Hollywood Reporter

Movie Poster of the Week: Rated X at the Quad on Notebook

Hollywood's Battle Against the X Rating, 30 Years Later - The Ringer

X-Rated Movies: 28 Provocative Films That Challenged the MPAA – IndieWire

The first American film to receive an X rating

x-rated cult films

Stanley Kubrick on X: Welly well well well A Clockwork Orange was released in the US #OnThisDay, 1972. Having been awarded an X rating in its original release, Kubrick replaced around 30

Review: 'Fast X” gears up for more road rage, sets up sequels - Brainerd Dispatch

X-Rated Movies at Yerba Buena – Bayflicks

3. The Contemporary Movie Rating System in America” in “Sexuality in the movies” on Digital Publishing at Indiana University Press