Directed by Douglas Trumbull, the special effects whiz of "2001: A Space Odyssey" fame, this intelligent sci-fi film is set in a future where Earth's only remaining vegetation exists in giant domes attached to space freighters. A botanist (Bruce Dern) defies orders to destroy the flora, killing his crewmates and taking his ship out into deep space, accompanied only by a pair of robot drones he dubs Huey and Dewey. With Cliff Potts, Ron Rifkin. 90 min. Widescreen (Enhanced); Soundtracks: English Dolby Digital mono, Spanish Dolby Digital mono, French Dolby Digital mono; featurettes; audio commentary by Trumbull, Dern; interview; theatrical trailer; more.