The two have attached to Sheldon Turner's upcoming adaptation of Kim Wozencraft's novel "Wanted."
Wozencraft is a former undercover narcotics agent best known for having penned Rush, the novel that became MGM's 1991 Jason Patric and Jennifer Jason Leigh pic of the same name.
In Wozencraft's "Wanted," a female cop (Aniston) in Texas is framed for narcotics trafficking and sent to prison. Her cellmate is a war protester (Streep) who's renounced violence, and the two plot an escape.
No helmer is yet attached to the pic.