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

X (MPAA), Rating System Wiki

RetroNewsNow on X: 🎬On November 1, 1968, the Motion Picture Association of America's film rating system was officially introduced with the ratings G, M, R and X / X

Whatever Happened to the X Rating?

10-7 in 1968 - The Motion Picture Association of America adopted the film- rating system that ranged for G to…

cinema history - Why would a movie that appears pornographic via it's rating (X) receive an Academy Award? - Movies & TV Stack Exchange

MPAA Rating Bumper Rated X Remake (1968-1970) by TheAnthonyCorp on DeviantArt

Watch Quentin Tarantino Fave The Street Fighter, The First Movie To Get an X -Rating for Violence (NSFW)

IPX Waterproof Rating Guide – Hypergear US

Midnight Cowboy' Rode to Success Despite Its X Rating – The Hollywood Reporter

What is the difference between the movie ratings R (17+), X (19+) and XXX (21+) other than age, and what do they mean? - Quora