MY SISTER'S KEEPER ! MOVIE

Movies? I like all type of movies, but my favourite ones are the ones that make you reflect like family movies. The one I choosed is very sad but it makes you strong if you know what I mean. 
Is about a three kids family. The older one, Kate, that has cancer, her mother (Cameron Diaz) and the oldest sister, Anna are the main characters. Then the father, Brian and the middle brother Jesse.
The movie shows the mother's sacrifice to her sick daughter when suddenly Anna knows that she will have to give a kidney to her sister. At the begginig of the movie Anna explains why was she born, she was "created" to save her sister's live, since she was a new born she has been giving blood to her sister. 
Kate knows Anna's secret ( she doesn't want to give a kidney to her because if she does, she won't live the life she wants to lead on). 
Anna tells her parents that she wants the rights to her own body. Her overprotective mother, who leads an obsessive campaign to keep Kate alive, is indignant at Anna's decision. Attorney Campbell Alexander lawyer  agrees to work for Anna as her guardian. 
At the end Kate dies, until the last moment her mother doesn't want to recognize it. 
The family moves on with their lives, but every year on Kate's birthday they go to Montana, which was her "most favorite place in the world."