'The Host' Cast Invades Hollywood Premiere

Saoirse Ronan is one hot extraterrestrial. The star of the upcoming supernatural romance "The Host," walked the carpet at Hollywood's ArcLight Cinemas Cinerama Dome last night to premiere her latest project alongside cast mates Max Irons, Jake Abel and Diane Kruger, plus author/producer Stephenie Meyer.

The willowy actress looked more mature than her 18 years in a maroon-hued Lanvin shift dress, strappy black heels and pin-straight locks. Her male co-stars also cut fine forms in their respective suits and ties. (Did we mention how jealous we are that Saoirse gets to make out with both guys in the film?!)

Set in a distant future in which an alien race known as Souls have commandeered human bodies for their own use, "The Host" follows Melanie's struggle to reclaim her body from the intruding Wanda, while also ensuring the safety of her surviving family.

(Click on the images above to peruse our entire gallery!)

Directed by "Gattaca" helmer Andrew Niccol, "The Host" hits theaters March 29.

Have you read "The Host"? Do you plan to see the film version? Tell us in the comments and on Twitter!