Lively will play the mother of teenaged Nebraskan girl Chloe Moretz, who runs away to Las Vegas armed with a gun after her parents abandon her.
The film also stars “My Week With Marilyn” star Eddie Redmayne to play a loner who tries luring the young girl away, reports contactmusic.com.
Lively will next be seen on the big screen opposite Ryan Reynolds in “Green Lantern”.