<P> During the hearing, Anna and Kate's brother, Jesse, reveals while Anna is on the witness stand that Anna is actually acting under Kate's instruction; Kate, not wanting to live any longer and be a detriment to her family, had gently persuaded Anna to refuse to donate her kidney, knowing that Sara would be too narrow - minded to listen to her . It also emerges that Anna had wanted to give Kate her kidney of her own accord, and had been terribly upset at Kate's decision . Sara is indignant and attempts to argue, but is finally forced by both Jesse and Brian to realize that Kate had been trying to tell her she is ready to die for some time . The judge makes a request to visit Kate in the hospital before finalizing the case . Later that day, as the remainder of the family leave, Kate gifts her mother with a memory book she has made over the years and later dies while sleeping at the hospital with her mother by her side . After Kate's death, Campbell brings the court decision: Anna won the case . The family moves on with their lives . Sara, who gave up practicing law to look after Kate returns to work, Brian retires from firefighting and counsels troubled youths, and Jesse receives an arts scholarship in New York . Anna reveals that every year on Kate's birthday they go to Montana, which was her "most favorite place in the world". Anna concludes that she was not born merely to save her sister, she was born because she had a sister, and that their relationship continues even in death . </P> <P> Upon the original creation of the film adaptation, sisters Dakota Fanning and Elle Fanning were cast to play Kate and Anna respectively . However, when Dakota heard that she would be required to shave her head for the role, she dropped out of the film as then did Elle . The two sisters were replaced, with Abigail Breslin taking on the lead role as Anna Fitzgerald and Sofia Vassilieva on the role of Kate Fitzgerald . </P> <Ul> <Li> Abigail Breslin as Anna Fitzgerald - Kate and Jesse's eleven - year - old younger sister . </Li> <Li> Cameron Diaz as Sara Fitzgerald - Kate, Anna and Jesse's overprotective mother, and Brian's domineering wife . </Li> <Li> Sofia Vassilieva as Kate Fitzgerald, a teenage girl suffering from acute Leukemia . She is reason her younger sister, Anna, was engineered . <Ul> <Li> Olivia Hancock as Young Kate Fitzgerald </Li> </Ul> </Li> <Li> Jason Patric as Brian Fitzgerald - Kate, Jesse and Anna's father, Sara's husband . </Li> <Li> Chris Kinkade as Dr. Nguyen </Li> <Li> David Thornton as Dr. Chance </Li> <Li> Evan Ellingson as Jesse Fitzgerald - Younger brother of Kate, who is dyslexic . <Ul> <Li> Brennan Bailey as Young Jesse Fitzgerald </Li> <Li> Paul Christopher Butler as Three - year - old Jesse </Li> </Ul> </Li> <Li> Alec Baldwin as Campbell Alexander </Li> <Li> E.G. Daily as Nurse Susan </Li> <Li> Lin Shaye as Nurse Adele </Li> <Li> Joan Cusack as Judge De Salvo </Li> <Li> Heather Wahlquist as Aunt Kelly - Sara's sister and Kate, Jesse and Anna's maternal aunt . </Li> <Li> Thomas Dekker as Taylor Ambrose - Kate's boyfriend / lover who died from unknown causes . </Li> <Li> Emily Deschanel as Dr. Farquad </Li> </Ul> <Li> Abigail Breslin as Anna Fitzgerald - Kate and Jesse's eleven - year - old younger sister . </Li>

Do the parents get a divorce in my sister's keeper