Troll
I've just finished watching "Troll" and I fear for my sanity. Seriously, I've had hallucinations that make more sense.
The Stuff
The movie starts with a closeup of a big puddle of white bubbling goo. Along comes a scary hillbilly, whose first response to seeing a big puddle of white bubbling goo in the ground... is to eat it. "This stuff is GOOD!" he says, and with that, a new dessert fad sweeps the nation!