Irish actress lands the lead role in adaptation.

Saoirse Ronan (‘Hanna,’ ‘The Lovely Bones’) is set to star in the upcoming adaptation of the Stephenie Meyer’s bestselling novel ‘The Host,’ reports Deadline.

Andrew Niccol (‘Gattaca,’ ‘Lord of War), who scripted the movie, was originally attached to direct before he moved on to direct the sci-fi drama ‘Now’ (formerly known as ‘I’m.mortal’) with Amanda Seyfried and Justin Timberlake. That movie is finished now so Niccol is once again in the mix as possible director for ‘The Host.’

“Melanie Stryder refuses to fade away. The earth has been invaded by a species that take over the minds of human hosts while leaving their bodies intact. Wanderer, the invading “soul” who has been given Melanie’s body, didn’t expect to find its former tenant refusing to relinquish possession of her mind.

As Melanie fills Wanderer’s thoughts with visions of Jared, a human who still lives in hiding, Wanderer begins to yearn for a man she’s never met. Reluctant allies, Wanderer and Melanie set off to search for the man they both love.”

Saoirse Ronan’s ass-kicking ‘Hanna’ arrives in Irish cinemas May 6th.