Marcia Gay Harden and Toby Jones have signed on to the horror, The Mist for Dimension Films and Castle Rock.

It's the big screen adaptation of a Stephen King story; Frank Darabont wrote the screenplay and will direct as well as produce. The film is set after a strange storm blows through a Maine town and its citizens are attacked by deadly creatures. The Hollywood Reporter adds a group of townfolks barricade themselves in a supermarket and struggle for survival. Thomas Jane, Andre Braugher, Laurie Holden and Amin Joseph already have been cast.

Harden will play Mrs. Carmody, an outspoken and ultimately divisive member of the trapped group; Jones will play Ollie, a mild-mannered supermarket manager who is forced to take heroic measures to save his life and the lives of others.

Shooting on The Mist begins this week in Louisiana.