The morally questionable characters made this more interesting that your typical sci-fi action film. This is a good-looking movie too, with nice cinematography, costumes, set design, and effects. After about 30 minutes, though, you find that you're watching something agonizingly predictable, something that goes on to taunt you with possibilities because it has nothing else interesting to present: the aliens aren't scary, the plot is bare bones, and the character development is half-hearted.

Very cool popcorn movie but not enough to get into the all-time top. If there was a popcorn movie rating though, it would get to tier 10 ;)

Beautiful SF, good acting, keeps you interested and on the edge of the seat for almost the entire movie.