VIOLA DAVIS, ZOE KRAVITZ HAVE A 'FUNNY STORY': Duo joins ensemble film based on Ned Vizzini's 2006 novel.

      The story follows 16-year-old Craig (Keir Gilchrist), who checks himself into a mental health clinic because he's stressed out from the demands of being a teenager. There he learns that the youth ward is closed – and finds himself stuck in the adult ward. One of the patients, Bobby (Zach Galifianakis), soon becomes both Craig's mentor and protégé. Craig is also quickly drawn to another 16-year-old, Noelle (Emma Roberts).

       With a minimum five days' stay imposed on him, Craig is sustained by friendships on both the inside and the outside as he learns more about life, love, and the pressures of growing up.       

       Davis will play Dr. Minerva, the adult ward's staff psychiatrist; Kravitz will portray Nia, Craig's longtime crush.

       Production is scheduled to begin in New York City in early December.