Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A good suspense thriller... but a little weak at times

Going to see this movie I at first thought it was just a generic thriller/detective plot. I was pleasently surprised to find that the movie was a lot more complex than that. The story takes on a few twists and turns and the ending is great. My only gripe is Monica Potters acting near the end of the movie is a little weak and unconvincing.