The first trailer for the adaptation of Twilight author Stephenie Meyer’s sci-fi novel The Host has gone online. This is the very definition of a teaser trailer, but the lack of footage isn't exactly unexpected given that the movie's still filming and doesn't come out for over a year. I'm not sure what all this glowing eye stuff is about, but I'm sure those who have read the book can fill me in. In the world of the film, a parasitic alien species is nearly finished wiping out the human population by taking over the consciousness of each person. A soul named Wanderer is attempting to take control of Melanie’s (Saoirse Ronan) consciousness, but faces strong opposition by what remains of the girl. I'm a big fan of writer-director Andrew Niccol's work and Ronan is a killer actress, so I'm quite intrigued by the project as a whole. I'm not exactly sure what the point of releasing a trailer this early was, but I'm sure we'll get a better look at the film later this year (in front of The Twilight Saga: Breaking Dawn - Part 2, perhaps?). If you missed them, check out the first images from the film here.Hit the jump to watch the trailer. The film also stars Max Irons, Jake Abel, Diane Kruger, William Hurt, and Frances Fisher. The Host opens on March 29th, 2013. [Update: We've updated the article with four hi-res images from the film]Here’s a synopsis for The Host:

THE HOST is a riveting story about the survival of love and the human spirit in a time of war. Our world has been invaded by an unseen enemy. Humans become hosts for these invaders, their minds taken over while their bodies remain intact. Most of humanity has succumbed.

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