Here's the full movie for your viewing pleasure, it's an amazing movie that I'd highly recommend everyone to watch.
They Live is a 1988 American science fiction horror film written and directed by John Carpenter. The film stars Roddy Piper, Keith David, and Meg Foster. It follows an unnamed drifter (referred to as "John Nada" in the film's credits) who discovers that the ruling class are aliens concealing their appearance and manipulating people to spend money, breed, and accept the status quo with subliminal messages in mass media. It is based on the 1963 short story "Eight O'Clock in the Morning" by Ray Nelson. - Wikipedia
"I have come here to chew bubblegum and kick ass...and I鈥檓 all out of bubblegum"