<< what always struck me as a kid was the role reversal of the humans being the "bad Guys" <<

IT CAME is sometimes praised as though it was the first movie to do that when actually, except for THE THING, I think all the previous alien-on-Earth movies of the '50s had done that -- MAN FROM PLANET X, DAY THE EARTH STOOD STILL, PHANTOM FROM SPACE, maybe one other I'm forgetting. IT CAME just kinda safely fell into that same ol' pattern.