Seems like many people missed the point of this movie. It was quite cerebral and paints a grim but very realistic potential setting for human colonizers. Don't expect any elaborate CGI, aliens, spaceships and such, that's not what this movie is about. It's about human nature, loneliness, anger, trauma, perseverance, biological and psychological drives and the intricate web of interactions between people forced to exist amongst each other for survival. If you want something "different" and thought provoking and you have a longer attention span than a goldfish, then it's definitely worth a watch.