Instruct: Classify an Amazon review into positive or negative sentiment.
Query: The best DVD on the subject out there.

I own probably 10 UFO dvd's - - and this one, by far, is the best of all of them ! The interview with Colonel Philip Corso in the "special bonus material" section was truly superb. GREAT research went into this marvelous movie. This DVD won two EBE awards. From Area 51, to Roswell, to Gerald Ford's memoirs to the never-ending governmental cover-ups, this DVD will hold your interest for the entire 2-hours ! A MUST PURCHASE !!