Kaya Scodelario has signed on to replace Rooney Mara in the lead role of Francesca Gregorini's indie Emanuel and the Truth About Fishes.

Francesca Gregorini's script follows Emanuel, a troubled 17-year-old girl who babysits her new neighbor's "baby," which is actually a very life-like doll. She goes along with the delusion while befriending the neighbor, who happens to be the spitting image of Emanuel's late mother.

No production date has been set.