Movie Ratings Explained — Origins & How They've Changed

Movie ratings explained — a history of the ratings system in Hollywood, including when it began and how it has changed over the years.

Where Do Film Ratings Come From?

50 Years of MPAA Movie Ratings—How the System Changed Films Forever

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The Meaning of Movie Ratings

History

Do movie ratings get updated over time? For example, could an R-rated movie from 1980 get moved down to PG-13 rating to match changes over time. - Quora

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Movie Ratings Explained — Origins & How They've Changed

Film Ratings - Motion Picture Association

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History