About the movie
Sometime in the future, the human race is enslaved by an alien race who use the human body as hosts, hence the title. However, not all the humans are controlled by this mysterious entity. Those that remain free, fight back against the aliens. This story follows a young girl named Melanie "Mel" Stryder, a human who was able to resist being controlled by the aliens.
Based on what I read on the internet, the fans of this particular novel are saying that this story is nothing like Twilight. Based on what I have seen from the trailer, I'm going to have to disagree. However, I'll let you guys decide for yourselves.