Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Truly a great mystery....

I haven't seen the movie so I can't compare it with that, but the book is so good I really don't see how it could be as good. This story starts off a tad slow, once it gets going roughly 50 pages in.......it gets REAL good. The characters are very compelling and very real. The greatest thing about this book and what makes it such a great mystery is just that..............you won't know the ending until the very end.