Star Wars' Mark Hamill hosts this two-hour journey through the greatest science fiction films ever made. This fast-paced adventure through some of Hollywood's most imaginative movies includes nearly everything from early silent classics to contemporary favorites. From the dinosaurs in Jurassic Park to the spaceships in Independence Day and the oozing aliens of Men In Black, high-quality special effects are expected by today's audiences. From the earliest days of cinema, science fiction films have offered dizzying illustrations of visual possibility. From Earth's first contact with alien visitors in The Day The Earth Stood Still to the eerie menace of computer HAL in 2001: A Space Odyssey, the genre's most imaginative storytelling has also helped to explore mnakind's darkest fears and greatest hopes.