Saoirse Ronan, the young actress that starred in “The Lovely Bones” and was nominated for an Oscar for her role in “Atonement”, will star in the film The Host, slated for release on March 29, 2013.

This new movie is the film adaptation of Stephanie Meyer’s sci-fi love story. Meyer is also the author of the epic Twilight series. In “The Host,” Ronan will play a 20-year old human girl named Melanie Stryder who is invaded by a parasitic alien in its attempt to seek the last group of surviving humans on Earth.

The alien is a part of the species known as “Souls” who can only survive by inserting themselves into a host body. When Melanie learns to put up mental walls to prevent her invader from locating her family through her memories, the plot thickens as the invader becomes torn between its loyalty to the species and the growing empathy for its human host.

Check back here for more updates on this film!