Based on the best-selling book by Brian Greene, this three-part "Nova" program features the Columbia physics professor presenting in easy-to-follow form the basics of "string theory," which many scientists believe can help explain the fundamental nature of the universe, from subatomic particles to the Big Bang. 180 min. on two discs. Widescreen; Soundtracks: English Dolby Digital stereo, DVS; "making of" documentary.