Kaffirs from space!

The reviews for District 9, as summarised on Rotten Tomatoes, are mostly positive. Out of 26 reviews at the time of writing, only one was negative (that's a ninety six percent "Fresh" rating).

The one negative review, from Armond White in The New York Press, is very critical. White, who's black, detects racism.

District 9 represents the sloppiest and dopiest pop cinema—the kind that comes from a second-rate film culture. No surprise, this South African fantasia from director Neill Blomkamp was produced by the intellectually juvenile New Zealander Peter Jackson. It idiotically combines sci-fi wonderment with the inane “realism” of a mockumentary...

It suggests some lingering Afrikaans’ fear or, possibly, how Jackson really thinks about the Maori and Aborigines.

Another black reviewer, Radheyan Simonpillai from AskMen.com, is more positive, and more in line with the consensus.

An alien movie hasn’t been this cleverly conceived since… well… Alien. Far from your average monster debauchery or invasion extravaganza, District 9 operates as an allegory for apartheid, xenophobia, corporate malfeasance, gentrification, and the dog-eat-dog nature of living in poverty under hostile and oppressive conditions.