Emma Stone is attached to play John F. Kennedy's sister Rosemary Kennedy in "A Letter From Rosemary Kennedy," a script by Nick Yarborough that WME is currently shopping to studios and independent financiers, multiple individuals familiar with the project have told TheWrap.
Rosemary was the eldest child of Joseph and Rose Kennedy who suffered from intellectual disabilities and underwent one of the first prefrontal lobotomies at age 23 — a procedure that went horribly wrong and left her with the mental abilities of a toddler. Her condition was long kept secret from the public — and even her own family — though it eventually inspired her sister Eunice Kennedy Shriver to found the Special Olympics.
See images of Rosemary Kennedy:
Emma Stone to play JFK's sister in 'A Letter From Rosemary Kennedy'
11th May 1938: Rose Kennedy (centre), wife of multi-millionaire and US ambassador to Britain Joseph Kennedy, and two of her daughters, Kathleen Kennedy (Marchioness of Hartington) and Rosemary Kennedy (right), leaving to be presented at Court. (Photo by Keystone/Getty Images)
UNITED STATES - DECEMBER 01: Washington, December 1937. On the left: Joseph Patrick KENNEDY, his daughters Jean (age 9), Eunice (age 16) and Patricia (age 13). Behind them is John Fitzgerald KENNEDY (future president of the United States). On the right: Rose Fitzgerald KENNEDY with her sons and daughters, Joseph KENNEDY JR. (age 22), Rosemary (age 19), Robert (age 12) leaning on the chimney, Kathleen (age 17) and Edward (age 6). (Photo by Keystone-France/Gamma-Keystone via Getty Images)
UNITED KINGDOM - JANUARY 01: Rosemary And Eunice Kennedy With Edward Moore On Arrival At Plymouth In 1938 (Photo by Keystone-France/Gamma-Keystone via Getty Images)
Rosemary, John, Eunice, Joseph Jr, and Kathleen Kennedy, Hyannisport, Massachusetts, Summer 1925. (Photo by PhotoQuest/Getty Images)
Seated at right, American socialite and philanthrophist Rose Kennedy (1890 - 1995) poses with her children, from left, Joseph P Kennedy Jr (1915 - 1944), John F Kennedy (1917 - 1963), Kathleen Kennedy (1920 - 1948), Rosemary Kennedy (1918 - 2005), and Eunice Kennedy, Brookline, Massachussetts, 1921. (Photo by Bachrach/Getty Images)
Arriving from Europe by clipper, Rosemary Kennedy (left), daughter of Joseph Kennedy, Ambassador to England, is greeted by sister Jean.
(Original Caption) Photo shows, left to right: The Missies, Eunice and Rosemary Kennedy, as they sailed yesterday on board the S.S. Manhattan of the United States Lines, bound for England, to join their family at the Ambassador's residence at Prince's Gate. Rosemary, has been a student at Marymount Convent, in Tarrytown, N.Y., while her sister Eunice, studied at the Sacred Convent in Noroton, Connecticut. (Photo by George Rinhart/Corbis via Getty Images)
(Original Caption) American Embassy 'at home'...Mr. Joseph Kennedy, the American Ambassador, and Mrs. Kennedy, entertained nearly 1,500 Americans at an Embassy party at the American Embassy in Prince's Gate, London, S.W., to celebrate Independence Day. Photo shows: Miss Rosemary Kennedy, left, chatting to friends at the garden party today. (Photo by George Rinhart/Corbis via Getty Images)
Rose Kennedy sits with three of her young children: Joseph, Jr., Rosemary, and Jack.
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"Letter" will focus on the final days of Rosemary Kennedy, who died in January 2005 at the age of 84.
Yarborough works as an assistant for Richard Arlook, who will produce the film with Allard Cantor and Jarrod Murray of Epicenter, who discovered the script on the Black List website. They now represent Yarborough along with Simon Faber and Tanya Cohen of WME.
"A Letter From Rosemary Kennedy" was selected as a 2015 Nicholl Semifinalist and a PAGE Screenwriting Contest Finalist. The project is expected to generate lots of interest in Hollywood.
Having recently worked with Woody Allen, Cameron Crowe and Alejandro G. Inarritu, Stone next stars opposite Ryan Gosling in Damien Chazelle's musical "La La Land." Stone will soon play Billie Jean King in "Battle of the Sexes" and she's also set to star in Disney's "Cruella." She's represented by WME, Anonymous Content and Ziffren Brittenham.