I saw the movie, and although I'm not going to give away the plot or any significant details of the movie, I will say that there is only one word to describe this movie...BIZARRE. It was not bad by any means, but it isn't the greatest thing I've ever seen.
However, I will say this much, I think this movie does an excellent job of showing how inhumane man can be to his fellow man. One of the fascinating things was that the aliens were first rescued by humans and were properly treated for their malnourishment at the beginning of the movie. However, after the aliens could not leave Earth due to the technological failure of their mother ship, humans then hated them and considered them the lowest form of life. Ironic really, a far more advanced extraterrestrial race being treated as lower than a human being. It goes to show how hateful and bias people can be and how they can use their own ignorance, fear, and insecurities to tear other people down to build themselves up and make them feel superior to others. The aliens in this movie, in my eyes, were more human than the humans themselves, rather ironic!
I also found it interesting how the protagonist of this movie starts out being a human being dedicated to the idea of relocating and evicting aliens from their homes. In a sense, he is a good guy, and he tries to do the right thing, but he has no qualms about moving these aliens out. However, in an ironic twist of fate, he becomes as hated and distrusted as the aliens, and it is only through this that he gains the perspective of the aliens and learns to treat them with dignity and respect, instead of fear and anger. He is a human who ends up becoming more human than the society in which he belongs at the end.
If one was to look at this movie as an analogy or allegory for the potential cruelty and destructive nature of mankind, I would say it was a great movie. However, from a science fiction perspective, I must say that I was more or less not impressed. Although there were aliens and alien technology in this movie, I believe this movie was more about inducing thought provoking scenarios, and showing the potential extent of man's potential destructive and hateful nature.