I'd like to review this thoughtfully...

Rating: 1/10 (17 October 2012)

...but I've just been pounded on the back of the head by a heavy metaphor for the past 90 minutes and can barely see. Also, I was forever stumbling in the big old plot holes and I believe I wrenched my knee on that last one.
Blacks, I mean aliens, have gotten a bad deal in South Africa and their oppressors blame them for the conditions in their slums and slummish behavior and bully them. This is a Very Bad Thing, the filmmaker tells us, over and over and OVER again, just in case you thought relegating a whole species or race to a barb-wire slum and shooting them randomly and aborting their babies visciously was a good thing because you're some form of brain-damaged moron with no morals at all.
Erase that endless awful metaphor, and the story doesn't hold together at all. To detail every way in which it failed totally would take me 5000 words, and I've wasted enough time on this bad movie already, but other 1-star reviewers here have hit on most of the idiocies here.
Based on 50's sf film science, the story had "aliens" (with two eyes over a nose over a mouth, which of course will never occur in any other evolutionary system) contaminate a bad guy with alien black goo (shades of the x-files) and he became half alien (like in The Fly). oooooh! Were it 1952 and were I eight years old, this would be a cool thing. It's not, I'm not, and this movie sucks.
There's plenty of crap blowing up, but that doesn't make drama. People, crap blowing up is just crap blowing up--it's not plot or suspense or character development or anything at all. AND YOU'VE SEEN IT BEFORE! Sheesh, how many explosions can one person stand? And for the girls watching, there's a little baby alien, awwww, ain't it cute and sympathetic, awww. Oooh, and Evil Corporations and their Evil Soldiers and why they didn't manage to wedge in a cliché Evil Preacher, I don't know. I've taught troubled high schoolers creative writing even they don't resort to this many clichés at once.
I have no idea what was wrong with 90% of serious reviewers that they thought this crap was any good. I hope they re-watch it in three years and suddenly understand what total FOOLS they were and feel the shame they should feel over rating this thing any stars at all. Seriously, do they get bribed to do this? This is a bad movie and any adult with half a brain can see it is, so why is there even one good review out there?