The idea that understanding would simply create more anxiety in an environment already saturated with it is central to the film. A celestial body is positioned precariously near Earth, and an enigmatic spacecraft has touched down on the Scottish Moors. Friend or foe? Ultimately, The Man from Planet X proves to be a fairly typical science-fiction offering—one that would often seem less impressive when compared to later films produced during the 1950s sci-fi craze. Still, this isn't necessarily a negative point, considering the ingenuity and skill involved in crafting a film of genuine value. Director Edgar G. Ulmer and his team managed with what was reportedly a very limited budget—though that figure is likely an overstatement—and nearly transformed something ordinary into something special. Utilizing sets previously employed in Joan of Arc (1948), the movie serves as a noteworthy example of low-budget filmmaking. Ulmer uses fog and mist to obscure the settings, while employing dim lighting and shadows to prevent the film from being revealed as cheaply made. The narrative itself is reasonably compelling. An extraterrestrial visitor from a world facing extinction requires assistance, but his purpose remains unclear. He's unable to speak, and the humans who encounter him have conflicting motives. There’s some tension, a touch of outlandish science, and even hints of romantic interest. It’s a good, solid science-fiction film that highlights the director’s often overlooked talents. Even an alien with a costume made from cardboard can't diminish that fact. 7/10

Source on TMDB