Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Excellent Film -- Amazing DVD

"Thirteen Days" is an intelligent and thrilling gem of a movie with relentless edge-of-your-seat suspense. Based on the events that took place in October of 1962 surrounding the Cuban missile crisis, they used actual transcripts and historical records in creating this well-written script. Expertly directed by Roger Donaldson, this film contains some top-notch performances from Bruce Greenwood as JFK, Steven Culp as RFK, and Kevin Costner as Kenny O'Donnell. The DVD version is amazing, with layers and layers of extras that provide fascinating historical background and perspective on the crisis itself and how a devastating nuclear war was avoided. It demonstrates the kind of information and detail that every DVD could and should offer, and is a must-have for any DVD collection. This is film-making at its very best. If you missed it in the theater, don't let it pass you by again.