Although fairly easy to figure out the twist in the ending if you're observant enough at the beginning, and later notice what the aliens and robots actually do, it's a decent idea. It's just terribly executed. The camera compositions are often irritating, and the dark and murry color scheme used is distracting, and the editing lacks the snappiness needed in some of the thrilling sequences. Sound editing is odd as well, with weapons sometimes just making a small sound. The pacing starts out well enough, building tension, but the middle half of the film plods along slowly with obvious and predictable scenes stacked one on top of the other. I guess my favourite scene is where someone fires a gun in a car and the driver barely notices, but the rest of it was utterly forgettable.