The book was different and, in a sense, markedly so. Many details, some of which were important to me, were altered or omitted. I was disappointed because I was hoping to see some of the scenes of the book-within-a-book and the other storylines presented in the movie. I understand where editing the text would have been necessary to fit into the time allocated and they did a good enough job of choosing. If you like the movie, maybe you can look into listening to Percival Everett's audio book or reading its sibling release in writing. Overall it was an engaging story, even at this superficial level.