Popular book series makes for chilling thrills for tweens.
Copious violence overshadows promising themes in hero 'toon.
Campy space series is retro fun, with a bit of innuendo.
Solid '90s sequel offers gentle scares for families.
Short-lived '90s series is more fun than frightful.
Spacy setting puts a neat new spin on still-violent antics.
Spellbinding Spielberg series has some lessons, too.
Sci-fi classic is dated and hokey but still entertains.