I've read all of James Patterson Alex Cross books, so I knew going in to watch this I would have to have an open mind about them changing things to adapt to a movie. I was not happy when they took the character Sampson completely out of the story and replaced him with Edward Burns character Tommy Kane. Some of the camera shots were hard to watch during the end fight scene with Tyler and Matthew they were too close to catch all of what was happening. Overall a good movie and if they make a sequel I will check it out as well.