They Live- Roddy Piper, Keith David, Meg Foster-1988 IMDB 7.2/10

Nada, a down-on-his-luck construction worker, discovers a pair of special sunglasses. Wearing them, he is able to see the world as it really is: people being bombarded by media and government with messages like "Stay Asleep," "No Imagination," "Submit to Authority." Even scarier is that he is able to see that some usually normal-looking people are in fact ugly aliens in charge of the massive campaign to keep humans subdued.