In a joke trailer for The Hills Have Eyes, the voiceover guy warns us that the hills have eyes, but then we see the mutant cannibals not being able to see where they’re going, so they get lost, and the potential victims just get to go camping peacefully, and then they get away, never knowing there was any threat. And so the voiceover guy says, in that gravely deep voice, that the hills have eyes, but they can’t see vey well, so don’t worry. But when they go to LensCrafters, look out!
Then, as a tag, we see the opening for the sequel: The Hills Have Glasses, with the warning to watch out, because they can see you now. (And the movie logo is blood spattering on a pair of glasses.) Or for an ad for contact lenses, maybe they could call it: The Hills Have Eyes: Cannibals with Contacts.
