The X-Rated Girl & Others Lot (Film Ventures International, 1979), Lot #51399

Movies get a ratings system – Dan The Man Trivia

X (MPAA), Rating System Wiki

The History of The First X-Rated Movie - Rare

getTV - The movie ratings system began 51 years ago today — Nov 1, 1968. The first ratings were: G — General Audiences M — Mature (became PG) R — Restricted X —

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

What happened to the X Rating?

MPAA X18 Rated Logo by JamesMoulton1988 on DeviantArt

This Film Is Not Yet Rated (Movie 2006): MPAA Gets an 'F

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

Which is worse, rated R or MA? - Quora