'The Host' EXCLUSIVE Trailer: The Alien Invasion Begins

Lest you missed all the hubbub yesterday, Saoirse Ronan is giving the world a first, EXCLUSIVE look at the trailer for her soon-to-be-released sci-fi romance, "The Host," here on MTV.com.

Prepare to have your mind blown by the sheer spectacle of it all.

In the trailer, we see the world of the future: where disembodied aliens came to Earth, overwrote everyone's brains with their own parasitic consciousness and more or less turned the human race into a bunch of walking iPods made of meat. Only a few have been spared—including Melanie, who manages to meet and fall in love with one of the few remaining non-pod-person males left on earth. But life on the run is risky, and it's not long before Melanie finds herself captured by the alien Souls (led by an ice-cold Diane Kruger)... and at 1:37, things get real. Action! Desert caves! Battles for the future of humanity! Plus, cute boys! Looks exciting, doesn't it?

"The Host" hits theaters March 29, 2013.

What do you think of the first full-length trailer for "The Host"? Tell us in the comments and on Twitter!