Olivia Wilde, Hailee Steinfeld and Nicole Behaire will star in The Keeping Room, directed by Daniel Barber and set during the dying days of the Civil War.
Wind Dancer Films has come on board to finance and produce the movie with Gilbert Films and Anonymous Content. WME Global arranged financing and will represent North American rights.
Sierra/Affinity will shop the project to foreign buyers at the American Film Market, which runs Oct. 31 to Nov. 7 in Santa Monica.
Written by Julia Hart, Keeping Room tells the story of three Southern women -- two sisters and a slave -- who are forced to defend their home from the onslaught of a band of soldiers who have broken off from the Union Army.
Gritty stories are no stranger to Steinfeld, who starred in True Grit in 2010. Barber, whose credits include Harry Brown, is set to begin principal photography in March in North Carolina.
Gilbert Films' Jordan Horowitz is producing alongside David McFadzean, Judd Payne and Dete Meserve. Gary Gilbert of Gilbert Films and Michael Sugar of Anonymous content will executive produce, while Anonymous Content's Nicole Romano and Trevor Adley will co-produce.