Turn off the brain for this campy craziness. Ron Howard, in his Opie days, invents "goo," which, when ingested, causes super growth. Beau Bridges leads a bunch of bad teens, Tommy Kirk (of Disney comedy fame) is the leader of some good teens, and you are the befuddled audience trying to believe what is transpiring on the screen.
Natch: the idiotic bad teens get a hold of the goo, and turn into colossal idiotic bad teens who take over a small town somewhere. Apparently, the presence of 30 foot hostile giants does not interest anyone outside of the town, so the townsfolk are left to fend for themselves. Of course, nobody in the town except the good teens bother to do anything about it.
Once the giants appear, the action is limited, probably due to a lack of budget for special effects. The growth sequence is about all they really focused on, where they --oh, never mind. It's the highlight of the film, though, trust me. Progressively cheaper and cheaper effects parade their way through the story after that. My favorite is the scene where they try to "tie up" a giant Beau Bridges. You see two plastic poles (supposed to be his legs) being roped by the good teens. They then try to fasten the ropes with hot rods orbiting the "surprised" victim. Every once in a while, they show Beau making spasmodic and confused expressions in slow motion. By the way, whenever they show a character in slow-mo, you know it's one of the giants.
The movie knows it's idiotic, and makes no effort to conceal it. Good for a laugh at how absurd it is.
