http://www.coasttocoastam.com/show/2013/03/19
http://www.youtube.com/watch?v=IFfdOkwyuL0
http://www.youtube.com/watch?v=nXtlLuB8sos
They_Live depicts parasitic beings gradually taking over the earth.
http://www.theofficialjohncarpenter.com/pages/themovies/tl/tl.html
It still holds up well after all these years.
http://www.propagandamatrix.com/291103theylive.html,
http://vigilantcitizen.com/moviesandtv/they-live-the-weird-movie-with-a-powerful-message
Another variation of the take over theme.
http://en.wikipedia.org/wiki/The_Arrival_(film)
Some facinating observations.
http://jayweidner.com/Archons.html, http://www.redicecreations.com/specialreports/gnosticalien.html