According to Deadline, Ricki and the Flash star Mamie Gummer and Emmy Award-winning actor Brian Cox have signed on to join in director William Brent Bell’s upcoming supernatural thriller Separation starring alongside Rupert Friend.
The film is produced by Bell together with Yale Productions’ Jordan Yale Levine, Jordan Beckerman, Russ Posternak and Jesse Korman, and RainMaker’s Clay Pecorin and Russell Geyser.
In addition to Gummer and Cox, Madeline Brewer of The Handmaid’s Tale and The Haunting of the Hills‘ child actress Violet McGraw have also been tapped to star in the film.
Meanwhile Brewer will play the couple’s longtime nanny with Cox set to play as Maggie’s overbearing father.