In this adventure swirling with cliffhanging excitement and awesome special effects, Helen Hunt and Bill Paxton play scientists pursuing the most destructive weatherfront to sweep through mid-America's Tornado Alley in 50 years. By launching electronic sensors into the funnel, the storm chasers hope to obtain enough data to create an improved warning system. But to do so, they must intercept the twister's deadly path. The chase is on! Special Features: Commentary By Director Jan De Bont And Visual Effects Supervisor Stefan Fangmeie Documentary: The Making Of Twister Featurette: Anatomy Of The Twister Music Video: Van Halen's 'Human Being' Theatrical Trailer.