Gerwig has joined Portman in Jackie, a film by Pablo Larrain (No) that will take place in the days following the November 1963 assassination of President John F. Kennedy. Also coming aboard the film is Peter Sarsgaard as JFK's brother, Robert, with Gerwig set to play Jackie's aide.
The project has been in the works for a while with Steven Spielberg and Darren Aronofsky attached at various points, with Rachel Weisz once in the role of Jackie Kennedy. Aronofsky is now producing with Noah Oppenheim (The Maze Runner) having written the screenplay.
Filming on Jackie begins later this year. Gerwig was seen earlier this year in the excellent Mistress America, and will star in Todd Solondz's Wiener-Dog next. [Variety]