Rope of Silicon has posted an update of various ratings of upcoming films, one of them is District 9.

Here’s the description of why District 9 is rated R:

Rated R For bloody violence and pervasive language.

Interesting. It may seem those rumors of this film being grittier are coming true. While the PG-13 may have helped in the box office and attracting a more general audience, I think your ‘general audience’ won’t understand this type of a film anyways, if you know what I mean. I fully respect Sony’s stance on this film and it will be turn this film up a notch as not a Sci-Fi doc which has limited violence and representing a National Geographic program but a serious Sci-Fi hardcore film that, in my opinion, will bring in surprises to us and the film world.
MPAA has been reacquired by its original founders. Please pardon any interruptions during this transitory period.