Instruct: Classify Amazon reviews into positive or negative sentiment
Query: this movie rocked

U-571 is one of the best war films I have ever seen. The DVD edition has awesome sound. Especially in the depth charge seens. Some things seem very planned such as an american knowing how to read german. Otherwise, there aren't any other major faults.The battles with germans and the destroyer were great. This would be a DVD I recommend to buy.