Helen Hunt and Bill Paxton play scientists pursuing the most destructive weather front to sweep through mid-America's Tornado Alley in 50 years.

Widescreen. Originally produced as a motion picture in 1996. Special features: Anatomy of the twister, behind-the-scenes documentary ; feature-length commentary by Jan de Bont and visual effects supervisor Stefen Fangmeier ; Van Halen's Human being, music video ; interactive menus ; production notes ; theatrical trailer ; scene access.