Rewind: These Film Ratings Are Not Yet Rated

New documentary has us looking at 10 historical (or is that hysterical?) moments in movie ratings history.

Kirby Dick's new documentary "This Film Is Not Yet Rated" takes a blistering look at the ratings system of the Motion Picture Association of America, the secret society that decides whether a shot of naked boobies earns a PG-13 or an R (one key: use of the word "boobies" usually points to PG-13).

The current ratings system was instituted in 1968, due in large part to the scandalous placement of a certain four-letter word starting with "F" in two movies released the previous year. The original ratings were G (acceptable to all ages), M (mature audiences, parental guidance suggested but not mandatory), R (persons under 16 must be accompanied by an adult) and the unofficial X (no one under 16 admitted). Over the years, the ratings have evolved but remain controversial. Questions of context, effectiveness and bias continue to dog the MPAA and don't seem likely to go away. To fuel the fire, we now present 10 historical (or is that hysterical?) moments in film ratings history.

1969: X Marks the Oscar

Some may find it shocking that in 1969, an X-rated film won the Academy Award for Best Picture. But "Midnight Cowboy," despite being about a male prostitute in New York City and his relationship with a sleazy con man, was not a "dirty movie." At that time, X had not yet become synonymous with pornography; the rating simply meant that the material was too mature for kids. Once X became a marketing gimmick for the porno industry, mainstream studios became reluctant to apply the tag.

1971: Stickin' It to the Man

When the seminal blaxploitation flick "Sweet Sweetback's Baadasssss Song" was given an X rating by the MPAA in 1971, director Melvin Van Peebles felt it was a racist reaction to urban elements that were not shocking to its intended audience. His response? The film (dedicated to "Brothers and sisters who have had enough of the Man") was marketed with the tag line "Rated X by an all-white jury," further adding to the film's hip cachet.

1978: Zombies Are Not Porn Stars

The stigma attached to the X rating raised a problem for George Romero's 1978 zombie flick "Dawn of the Dead." While there was no sex in the film, the bloody violence was so intense that an R rating wouldn't suffice. But an X had by now become the exclusive domain of seedy theaters populated by skeevy guys in trench coats. So a compromise was struck: "Dawn" would be released without an official rating, although a posted notice would announce that due to strong graphic violence, no one under the age of 17 would be admitted.

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1980: The Final Frontier of the Non-Kiddie G

In the early years of the ratings system, films such as "Planet of the Apes" and "The Odd Couple" were rated G, as they fit into the rather broad guideline of being acceptable to "general" audiences. But as the '70s came to a close, G became the anti-X, bringing to mind animated anthropomorphic animals. 1980's "Star Trek: The Motion Picture" was the last blockbuster geared equally toward adults and kids to be released with a G rating. After that, the studios came to feel that any movie that wasn't aimed directly at the tots should bear at least a PG.

1984: Indiana Jones and the PG-13

The fine line between PG -- which replaced M in 1970 as GP -- and R blurred as profanity and depictions of sex, violence and drug use became more commonplace in mainstream films. The final straw came in 1984, when "Indiana Jones and the Temple of Doom" contained some gruesome scenes of bloody ritual sacrifice, including a shot of a man's beating heart being pulled out of his chest. Reacting to the controversy, Steven Spielberg recommended a new rating, PG-13, still allowing kids to see a movie without adult accompaniment but with a strong caution that it might be too intense for younger viewers.

1990: NC-17 Does Not Equal X

As the '80s closed, in an effort to distance "adult" films from pornography, the MPAA created the new rating of NC-17, meaning no children 17 or younger would be allowed. The first major release to bear the new rating was 1990's "Henry & June," the erotic, booze-fueled tale of the love triangle of Henry Miller, his wife June and Anaïs Nin. Ironically, despite the heavy sexuality in the film, including a ménage à trois, the cause of the rating was a three-second shot of an erotic Japanese postcard involving a drawing of a woman being, uh, welcomed by a huge squid.

1998: War Is Hell, But It's Not for Adults Only

The most oft-cited criticism of the ratings board is its tendency to deem human sexuality more offensive than extreme violence. Few would argue that the opening sequence of the Battle of Normandy in Steven Spielberg's "Saving Private Ryan" is one of the most visceral, violent sequences in film history. And yet the movie was given an R rating, ostensibly because the events were historical (as far as we know, zombies have yet to attack a shopping mall near Pittsburgh).

1999: South Park Takes on the MPAA

Trey Parker and Matt Stone have tackled a lot of icons, from short Scientologists to Saddam Hussein. In their feature film, "South Park: Bigger, Longer & Uncut," they take specific aim at the hypocrisy and ineffectiveness of movie ratings. When the South Park boys become "corrupted" by the graphic language in an R-rated Canadian film, it leads to a war between America and the Great White North. Parker and Stone were adamant that the film be as foul as possible, earning an atypical cartoon R and getting into the Guinness Book of World Records for the most uses of profanity in an animated film (399, if you're counting).

2000: Requiem for NC-17

After the box-office failure of 1995's heavily marketed NC-17 film "Showgirls," the studio blamed the film's fate on the negative aura of an ostensible X rating. In short order, NC-17 was deemed as poisonous as the dreaded X. And so, taking a cue from the zombies, Darren Aronofsky's graphic addiction parable, "Requiem for a Dream," was released in 2000 without an MPAA rating.

2001: Don't Believe the Hype

When the hit comedy "American Pie" was released in a new, "unrated" version on DVD in 2001, legions of horny fans snapped up the disc, hoping for more shots of Shannon Elizabeth, uh, studying or maybe a flashback sequence with Alyson Hannigan and that flute. But calling a different version of a film on home video "unrated" has nothing to do with content. It merely refers to the fact that this new edit was not submitted to the MPAA for a new rating, which may well have been exactly the same as the theatrical release. The added material could be as innocuous as a shot of Eugene Levy shaving his earlobe. Actually, to some that may rate an NC-17.

It's inevitable that the current ratings system will continue to evolve as society's mores change and technology moves forward. But debate as to the effectiveness of any kind of rating system will continue unabated. As long as someone's trying to impose their own idea of morality and what is or isn't "art" on someone else, it's gonna get messy.

Check out everything we've got on "This Film Is Not Yet Rated."

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