With this one I've discovered that you either love it or hate it. I'm squarely in the former of the two because I think this was one of the best films of 2012. I also love the Alien movies (the first three, anyway) so I've gotten into heated debates with "purists" who bitch that this movie leaves too many questions unanswered yadda yadda yadda.
First off; this isn't an "alien" movie, but one that exists in the same universe. The themes Ridley Scott is exploring in this movie are epic and open up so many possibilities for sequels. I'd really like to see them take the story of the Engineers further on the next movie as opposed to making it a link to the first Aliens. Michael Fassbender does a great job and this is probably my favorite role of his. I admit I have a soft spot for a good sci-fi flick but I give this one an "A" rating.