[UPDATE: We’ve added new, hi-res images from The Host.]

Principal photography on Andrew Niccol’s adaptation of Twilight creator Stephenie Meyer’s sci-fi novel, The Host, only just commenced last month, but a teaser trailer is already here. That’s because Open Road Films knows that the movie’s target young adult (YA) demographic will be turning out in hordes this weekend for The Hunger Games – and the studio hopes to start building awareness for Niccol’s project by premiering a preview with that surefire blockbuster.

Similar to Hunger Games, The Host is a sci-fi story that takes place against a troubling futuristic backdrop, features an Oscar-nominated youthful actress (Saoirse Ronan) in the lead, and is being overseen by a respectable filmmaker in the form of Niccol. Otherwise, though, these YA best-seller adaptations are pretty much worlds apart.

Here is the official teaser trailer for The Host (followed by a brief synopsis for Meyer’s novel):

In this tantalizing SF thriller, planet-hopping parasites are inserting their silvery centipede selves into human brains, curing cancer, eliminating war and turning Earth into paradise.

It looks like the reason Open Road was able to scrape together a teaser so quickly is because… it doesn’t really feature any actual footage, save for shots of people who’ve been “infected” by the aforementioned alien parasites. Judging by this trailer alone, you might think that The Host is primarily an intriguing spin on some familiar sci-fi tropes and concepts.

While that is partly true, The Host (as Niccol has informed People) is actually “kind of an alien love story,” about how young Melanie Stryder (Ronan) convinces the non-human “soul” who’s taken control of her, named Wanderer, to search for her loved ones – including her boyfriend, Jared Howe (played by Red Riding Hood‘s Max Irons) and eventually Ian O’Shea (I Am Number Four‘s Jake Abel), a human who falls in love with Wanderer.

UPDATE: Check out the first images of Ronan and Irons in The Host, along with a pic of Diane Kruger as “The Seeker” (click each photo for a larger version):

The sappy-sounding, Twilight-esque love triangle (square?) present in The Host is reason enough for non-Meyer fans to be somewhat weary about this new cinematic adaptation of the author’s work. Hopefully, Niccol will manage to turn that material into a captivating piece of philosophical sci-fi entertainment – more like his best work (Gattaca, S1m0ne) and less like his previous lackluster efforts (In Time).

The Host opens in theaters around the U.S. on March 29th, 2013.

Source: Yahoo! Movies, People