Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Careful about this one!

You may imagine you're getting a 3D exploration of the grand canyon; what you are really getting is "Rich People Do Cool Stuff While Giving Lip Service To The Environment". There is the Kennedy family in it, and it smacks heavily of marketing for them. The "producer" constantly puts his daughter in the shots, the guides and locals looked embarrassed to be there, and the technical quality is mediocre at best.The focus of the narrative is the health of the Colorado river rather than the canyon.The title and cover image were clearly intended to deceive. Now I carefully check each 3D DVD I buy to make sure it doesn't have, in tiny letters, a subtitle that will totally change my desire to see or buy it.3D: OkLocation: The few shots of the canyon, niceProduction: Poor, amateurishNarrative: Intolerable