I've been wanting to see this movie, but of course had to read the book first. I finished the book a week ago and I haven't seen the movie yet, but I wonder how Hollywood retold this story. I will warn you, the start of the book is disturbing. The premise of the story is a young girl is killed and her spirit sticks around to observe the aftermath, how her family moves on, or doesn't (think Ghost with Patrick Swayze and Demi Moore). So the first thing you read about is her death. It isn't too graphic, but your imagination can make it a lot worse.
It isn't an original plot. I have read others like it, I've seen movies, like the aforementioned Ghost, like it. But it is different characters, and there is some originality, and most importantly to me, the book doesn't have the typical Hollywood, everyone lives happily-ever-after ending (and I don't think that statement is a spoiler.)
It's a light read. It isn't on my list of all-time favorites, but I enjoyed it. I never thought to just set it down and not pick it back up, I wanted to finish the story.