I highly recommend DISTRICT 9 if you 1) enjoy sci-fi, 2) like a documentary-style movie, 3) are looking for something different than the traditional alien fare. It has a 90% Fresh rating on Rotten Tomatoe. Perhaps the ending could have been better, as suggested by more than one critic, but for me DISTRICT 9 worked well and entertained. My wife found the ending sad, which I think says something when she connects to the outwardly disgusting child prawn.
We will see what happens when DISTRICT 10 hits screens, and I am assuming it will. One things for sure, oftentimes our humanitarian acts do nothing but make things worse. That was the point, right?