Mara will replace Mia Wasikowska in the role and stars alongside Cate Blanchett.
Pic, which is penned by Phyllis Nagy (“Mrs. Harris”) and helmed by Haynes (“I’m Not There”), is a love story about pursuit, betrayal and passion that follows the burgeoning relationship between two very different women in 1950s New York.
One is a girl in her twenties working in a department store who dreams of a more fulfilling life while the other is a wife trapped in a loveless, moneyed marriage desperate to break free.
HanWay Films is repping international sales and pic has already sold to The Weinstein Co. in the U.S., eOne in Canada, Icon in Australia and TF1 in France.