Movie ending made me so happy. I LOATHED book ending with the donor sister dying. It was as though she, as a person, didn't matter at all and reinforced the whole concept that she was only there to provide for her sister. That's one adaptation that made me very happy.
I went to see Percy Jackson and the Olympians as a movie before I read the book. My friend had read the book first so she was very angry at the movie adaptation. For me, it piqued my interest in the books so I read them all and now I get why she's mad at the adaptation, but I don't hate it. Funnily enough, I did dislike the 2nd movie because it was such a bad adaptation.
I watched the first two Bourne movies and was so excited about the third one I decided to read the book, Bourne Ultimatum, to get some hints. They could not have been more different if they tried. For me, since I saw the movies first, I really liked the movies more.