StudioCanal is financing development of the project, which is based on Rosamund Lupton’s bestselling novel “Sister.” The project is near and dear to Blunt, whose own sister, literary agent Felicity Blunt, represents the book, which has sold more than one million copies worldwide.
The London-based mystery follows Beatrice (Blunt) as she investigates the death of her younger sister Tess, whose death is ruled a suicide by police. Convinced that her sister was murdered, Beatrice sets out to uncover the strange events leading up to Tess’ death, though she may pay a terrible price for the truth.
Also Read: Emily Blunt — a Breakthrough in Prada
Rory Koslow will oversee the project for Langley Park, which is currently searching for a writer to adapt Lupton’s novel.
Blunt has spent most of 2013 on movie sets, filming the female lead opposite Tom Cruise in Doug Liman‘s futuristic action movie “Edge of Tomorrow,” as well as the role of the Baker’s Wife opposite James Corden in Disney’s “Into the Woods.” Those movies are scheduled for release next year on June 6 and Christmas Day, respectively.
Langley Park is currently developing an adaptation of Robert Kolker’s true crime book “Lost Girls,” a Boston Strangler movie with Casey Affleck attached to star and an adaptation of Jo Nesbo’s novel “The Son,” which like “Sister,” features a protagonist questioning the suicide of a family member.
Blunt was last seen wielding a shotgun in “Looper” and is no stranger to movies about siblings, having starred in “Your Sister’s Sister.” She’s represented by CAA and attorney David Weber.