Claim: An Irish-American actress starred in The Host.

The Host is a 2013 American romantic science fiction thriller film adapted from Stephenie Meyer 's novel of the same name . It tells the story of a young woman , Melanie , who is captured after the human race has been taken over by parasitic aliens called `` Souls '' . After Melanie is infused with a soul called `` Wanderer '' , Melanie and the alien `` Soul '' vie for control of her body . Written and directed by Andrew Niccol , the film stars Saoirse Ronan , Max Irons , Jake Abel , William Hurt , and Diane Kruger . Released in theaters on March 29 , 2013 , the film was poorly received by critics .