Rachel Weisz & Emily Blunt: Sister Sister!

Rachel Weisz is set to play the sister of Emily Blunt in Lynn Shelton‘s new untitled project.

According to Deadline, production starts later this month in Seattle after Rachel begins work on Terrence Malick‘s untitled new film.

Emily is set to headline Ram Johnson‘s Looper, opposite Joseph Gordon-Levitt and Bruce Willis. In March 2011 she’ll star alongside Matt Damon in romantic sci-fi The Adjustment Bureau.