http://en.wikipedia.org/wiki/They_Live#Plot
Are they ET monsters from another world or another dimensional plane of existence?
http://www.bibliotecapleyades.net/vida_alien/alien_archons02.htm
They_Live is still an incredible movie that's meant to be perceived on various levels.
http://www.theofficialjohncarpenter.com/pages/themovies/tl/tl.html
See some fascinating observations at...
http://mysteryoftheiniquity.com/2015/01/19/they-live-analogy
and especially at...
http://vigilantcitizen.com/moviesandtv/they-live-the-weird-movie-with-a-powerful-message
http://www.jayweidner.com/Archons.html
http://en.wikipedia.org/wiki/Signs_(film)#Plot ,
https://www.youtube.com/watch?v=5kjiyQXnbHw ,
http://www.rogerebert.com/reviews/signs-2002 ,
http://www.quietearth.us/articles/2012/08/This-theory-will-make-you-rethink-everything-about-M-Night-Shyamalans-SIGNS
Movies, books & music can contain multi-level information within a larger context of manipulation.
http://c-shapes.blogspot.ca/2015/02/dave-mcgowan-weird-scenes-inside-laurel.html