...is an eco-horror flick from '72, along the lines of (but before) Wicker Man. Actually kind of a cross between WM and X-Files. I always wondered what the flick was about based on a big full color pic in the big old Pictoral History of Horror Movies book (those of you who had that book as a kid, know that pic). It's dated but darn good, better than a lot of dreck you can watch online at Netflix, which is where I just saw it. They didn't get screechy with the enviro message, either, which is a plus. Some really good moments in it. Check it out if you got time to kill.