Well, if you want a state of the art Blu Ray title to add to your collection, look no further. But personally, I thought the plot was derivative. More than anything, I felt it was like Cameron's "Aliens" (an evil mining company in tension with caring humans led by Sigourney Weaver, with jarhead marines stuck in the middle), except with the roles reversed - this time the humans play the aliens who cause the mayhem. Brilliant eye candy and a good romp, but I didn't find my mind stretched by the storyline. In years to come, I suspect I will be pulling Aliens off the shelf to watch again in preference to Avatar . . .
Five stars for technical presentation, two stars for storyline.