In the movie the glasses let the wearer see the truth. This template is often used backwards but it’s correct in this case.
“They Live!” A guy finds some strange sunglasses that lets him see the subliminal messages hidden in all our print and media and advertisements. He can also see aliens walking amongst the population, disguised as regular humans!
Turns out, Earth had been invaded by aliens long ago and they’ve been keeping us under their control with subliminal messages for decades.
The Full movie is worth a watch.
“I have come here to chew bubble gum and kick ass, and I’m all out of bubble gum”