there are a few problems that prevent me from fully enjoying the film. for starters, the aliens have superior technology and they are physically stronger and more agile than a human. but it's there superior weapons technology that troubles me the most. so i must ask why don't they use it against the humans to at least maintain peace and obtain basic essentials in order to survive? also, the stranded aliens fail to call upon their fellow breathern from their home planet for help or assistance? i just don't know and now i'm wondering if the screenwriter thought this through carefully. moreover, this movie is more about humanity and what makes us human. in other words, it's a movie that attempts to make a social commentary.