Susan Sarandon is replacing Diane Keaton in Roger Michell's drama Blackbird. 

In July (18), it was confirmed that Keaton had signed on to appear in the upcoming film, a remake of Bille August's 2014 Danish movie Silent Heart.

However, editors at Deadline have now reported that Keaton will no longer appear in the film, with Sarandon replacing her in the part of a terminally ill mother named Lily who arranges to bring her family together one last time before she dies.

Kate Winslet and Mia Wasikowska will portray Lily's daughters, while Sam Neill, Rainn Wilson, Lindsay Duncan, and Bex Taylor-Klaus have been tapped to take on supporting roles.

Danish writer Christian Torpe, who penned the screenplay for Silent Heart, has also written the new adaptation. Production on the film is due to kick off this month (Oct18) in the United Kingdom.

Keaton has not commented on her decision to drop out of the film. The Oscar-winning actress was most recently seen onscreen in romcom Book Club alongside Jane Fonda, Mary Steenburgen, and Candice Bergen, and is currently in the post-production phase on Poms, Zara Hayes' comedy about a group of women who form a cheerleading squad at their retirement community.

Meanwhile, Sarandon has completed shooting a part as Samantha Winslow on TV show Ray Donovan and as an art teacher in James Gallagher's short film Love.

The 72-year-old has a string of other projects in the mix too, including a role as Dr. Sylvia Mansfield in short thriller Slipping Away and as Thelma Toole in Butterfly in the Typewriter, David DuBos' forthcoming movie about troubled author John Kennedy Toole and his struggle to bring his comic masterpiece A Confederacy of Dunces to print, with the project also starring Diane Kruger and Nick Offerman.

A potential release date for Blackbird has not yet been set.