X rating - Wikipedia

Movies get a ratings system – Dan The Man Trivia

Whatever Happened to the X Rating?

File:X rating symbol.png - Wikimedia Commons

MPAA Rating Bumper Rated X Remake (1970-1971) by TheAnthonyCorp on DeviantArt

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

File:MPAA X RATING (block).svg - Wikipedia

MPAA X Rating Band (1968) [FTD-0199]

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

IPX Rating System: What It Means And Why You Should Know

TIL the 1983 film Scarface was originally given an X rating three times in a row by the MPAA. On the fourth appeal, the film was finally given an R rating, but