Prophecy (1979)

IMDB
Genre : Action / Horror / Sci-Fi / Thriller
TRAILER
Director : John Frankenheimer
Stars : Talia Shire, Robert Foxworth, Armand Assante, Richard Dysart
Plot : A government health inspector is dispatched to assess the damage a logging company is causing to a patch of forest claimed by Native Americans, and comes face to face with true terror wreaking havoc in the woods.