Based on a Robert Heinlein story, this is nothing more than a high-budget rip-off of Invasion of the Body Snatchers. Donald Sutherland plays a top government head, who learns of a planned take-over by alien parasites, who control the minds and bodies of humans like puppets (hence the title). Overblown special effects and cheesy acting doesn't get you very far in the film world. Sutherland is the only thing that saves the film, but even he goofs up once in awhile. If you want a better thrill, check out the far superior Invasion. You'll probably have a better time sitting on the couch watching bodies being snatched, rather than having to shell out four bucks at the video store for this alien puppet show yawn.