Mamie Gummer Joins Jennifer Aniston in 'Cake' (Exclusive)

Mamie Gummer Headshot - P 2014
AP Images

Mamie Gummer Headshot - P 2014

The daughter of Meryl Streep will play a personal trainer in the film.

Mamie Gummer is joining Jennifer Aniston in Cake, a film about a woman who becomes fascinated by the suicide of a member of her chronic pain support group.

Gummer, the daughter of Meryl Streep and sculptor Don Gummer, will play Bonnie, a personal trainer to Aniston’s character.

PHOTOS: Hollywood Dynasties: Top 14 Movies Featuring Stars and Their Kids

Won't Back Down helmer Daniel Barnz is directing from a Black List script by Patrick Tobin.

Ben Barnz, Kristin Hahn, Courtney Solomon and Mark Canton are producing. Aniston also is executive producing.

Cake is the first in a five-movie linkup between Chinese TV producer Shenghua Entertainment and After Dark Films under the banner Cinelou Films. The project was first announced during the Berlin Film Festival. CAA and WME represent the film’s domestic distribution rights.

Gummer, who starred on TV's Emily Owens M.D., most recently joined James Ponsoldt's indie film The End of the Tour, which will star Jesse Eisenberg as David Lipsky and Jason Segel as David Foster Wallace.

She also has appeared on CBS' The Good Wife and her recent film work includes Steven Soderbergh's Side Effects and indie The Lifeguard. Gummer is repped by CAA and Anonymous Content.

Twitter: @Beccamford