Movies about stupid aliens: Spielberg's WAR OF THE WORLDS. The Martians are masters of technology, building marvelous machines of war and destruction, and have mastered the art of interplanetary travel via lightning bolt.
But they're pretty dim creatures nonetheless. For some reason, they came to Planet Earth millions of years ago, buried a lot of those war machines, and then went back home for some reason, instead of just invading all those millions of years ago. I mean, WTF? And it never seems to have occurred to them that breathing the atmosphere on an alien world, to say nothing of drinking water running down the walls of a desolate building on that alien world, is probably not the best idea.
"If they can get you asking the wrong questions, they don't have to worry about the answers." Thomas Pynchon, GRAVITY'S RAINBOW
"Reality is that which, when you stop believing in it, doesn't go away." Philip K. Dick
My blog: http://www.roscoewrites.blogspot.com/