I was one of 5 people who went together for this showing. 3 people read the book and 2 didn't. I did not read the book. This movie was Very good as was the the acting and visuals. The twist was well planned and fit the movie. In my opinion if you go see it not knowing what its about you will like it. If you read the book you will also like it because you can visualize what you read. If you know the ending already but didn't read the book I think you may be disappointed.