The Trollenberg Terror (aka The Crawling Eye) (1958)

In a resort village in the Switzerland mountains, several strange deaths occur when climbers attempt to climb up the town's mountain attraction. A mysterious cloud has the ability to move up and down the mountain's side and when it does, people die! When a telepathic girl (Janet Munro, SWISS FAMILY ROBINSON) arrives in the village, the "clouds" seem to sense she is there and view her as a threat. Based on a British television program, this modestly budgeted B&W sci-fi feature does quite well in creating a tense and mystifying atmosphere which is enough to keep one clued to the screen. Retitled THE CRAWLING EYE for U.S. audiences, as if sensing that actually showing the eye would be a bit of a letdown (it is), the film makers elect to keep it hidden until the film's finale which is a smart move as the eye itself is rather tacky looking and the movie drops down a few notches. Still, up to then the film tantalizingly teases us with decapitated heads and axe wielding zombies so we don't get too bored waiting for the eye to arrive. Directed by Quentin Lawrence (who also directed the TV version). With Forrest Tucker as the obligatory American, Jennifer Jayne, Basil Sydney and Laurence Payne recreating his TV role as an investigative reporter.