District 9 was incredible, amazing. I knew very little about it before seeing it, which is my favorite way to watch fantastic movies. I knew that it involved aliens coming to Earth above South Africa and living like refugees. In case you haven't seen it, I won't tell anymore than that since that's all I wanted to know.
It's a brilliantly written, acted and directed film which touches on everything that makes us human and inhuman. It has my highest recommendation and I really appreciate all the things it has given me to think about, even though that has also made it hard for me to sleep that night...