Universal teamed up with Blumhouse Productions for a big screen adaptation of Stephen King’s Gramma. The movie is officially titled Mercy and we have another casting update to share with readers. Variety reports that Shirley Knight and Chris Browning are the latest and final additions to the main cast, which already includes Dylan McDermott, Frances O'Connor, Chandler Riggs and Joel Courtney.

The movie will be directed by Peter Cornwell (The Haunting in Connecticut) from a script written by Matt Greenberg (1408). Gramma was first published in Weirdbook magazine and was part of 1985′s Skeleton Crew. The story “follows two young boys who go with their single mother to take care of their elderly, senile grandmother named Mercy, only to discover that she’s a witch who made a pact with a dark force many years before.”

Mercy is one of multiple Stephen King projects currently moving forward. CBS has announced a TV series based on Under the Dome, Tom Holland is directing The Ten O’Clock People, an adaptation of Cell with John Cusack is in the early planning stages, and a remake of Carrie will hit theaters this October.

Source: Variety