Shailene Woodley continues to rack up the co-stars for her upcoming sci-fi/thriller "Divergent."

Relative unknowns Ben Lloyd-Hughes, Ben Lamb and Christian Madsen have been cast as Will, Edward and Al, respectively, in the adaptation of Veronica Roth's popular young-adult novel, joining the likes of Kate Winslet, Theo James ("Underworld: Awakening"), Jai Courtney, Zoe Kravitz, Ansel Elgort and Maggie Q. Neil Burger ("Limitless") is on board to direct the Lionsgate project from a script by Vanessa Taylor, with filming set to commence next month in Chicago.

Set in a futuristic world in which the human population is divided into factions based on their personalities, "Divergent" centers on Tris Prior (Woodley), a young woman who takes action after discovering a conspiracy to eliminate all members of her group, a contingent known as the "Divergents." The New York Times bestseller was followed by a second novel titled "Insurgent" in May of 2012; the third book is due for release in October.

"Divergent" is slated for release on March 21, 2014.

Are you looking forward to "Divergent"? Let us know in the comments.

A former contributor to sites including MTV's The Backlot and Bloody-Disgusting, Chris Eggertsen worked in film development before indulging his love of pop culture writing full time. He specializes in horror, the intersection of social issues and entertainment and Howard Stern. He's on Twitter @HitFixChris.