Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great 3D but a horrible movie.

Truly great 3D - some of the best I've seen.BUT THE MOVIE!!!GROSS - GROSS - GROSS !!!The reviewer that called it a colossal mess was right on. Really didn't need the guy drowning another guy. Give me a break. This was supposedly based on a true story. One has a tendency to think some of this - including the above deliberately graphic disgrace - was for "effect" whatever the "effect" was supposed to be.If you watch this just be prepared for some of the most severe selfish, self-centered idiocies that could be filmed.NOT FOR THE SQUEAMISH!