Out of the fifties 'B' Science-Fiction monster movies, this easily ranks as the best. It's most notable as the film that ALIEN is an unaccredited remake of, thus giving it a certain historical significance.　　The intriguing plot is about the rescue of the only marooned survivor (Col. Carruthers) of an ill-fated expedition to Mars. The authorities, pig-headed as usual, falsely assume that he murdered his fellow crew members, so that he'd have more provisions to survive; hence he is being brought back to Earth to face court-martial for murder. (There is also a somewhat interesting plot reversal here Most movies of this nature usually begin with the ship leaving Earth, enroute to its otherworld destination, while, in this case, the story is believed finished, and begins as the characters take-off from the other planet, returning to Earth). As the rescue ship is leaving Mars, a lurking, ominous shadow is seen in the lower compartment. (A frightening, atmospheric moment, accomplished through sheer economy and simplicity).　　Carruthers insists of his innocence to his fellow captors, claiming that his original crew mates were slaughtered by a hostile, unseen presence on the desolute red planet, but three-guesses as to their reaction to his unusual plea. Naturally, he can't prove it, and 50's space authorities were not very alien conscience at the time. (As a side-thought, unseen menace may remind you of that highly original BLAIR WITCH).　　As everyone sacks out, a hapless supporting charactor whose name is at the bottom of the casting list (guess what will happen to him) hears something in the lower compartment. Despite your futile don't go down there, you jerk! pleas, he does just that, and is appropriately killed (more like thoroughly obliterated) by the shadowy figure with insatiable blood lust on its mind. In the victim's case, dereliction of duty and sheer cowardliness would have been the wise decision. The scene is actually well-directed (for a change) and develops much suspense, as the entire film surprisingly does.　　The crew finally catches on that they have an unwanted ship crasher on board, and try every possible means at their disposal to eliminate it, but the unknown creature seems to copping an anti-death attitude. Proving to be an even more clever, worthy adversary, 'IT!' also hides out in the ventilation shafts of the ship (now that should ring a bell). Cahn's forceful direction generates considerable tension as the malevolent stowaway works its way up from one level of the confined ship to the next, eventually leaving the remaining characters trapped at the top. The movie's suspense is blunt and right to the point IT!' has to kill them or starve, hence they have to kill IT! or die. Nothing like those no two ways about it choices. Rent it, or check for it on cable if you wish to know the outcome.　　For a low-budget quickie, IT! is quite impressive and memorable. The dreaded sense of claustrophobic tension, rendering the characters' helpless entrapment, is highly effective. This is a production in which the limited budget and small sets actually work in favor of the plot's scary ambience. The black white photography (Yes, it's one of those!) helps to enhance its dark, creepy mood, and the sense of apprehension is quite high. (Modern day color freaks never seem to take that into consideration). The plot is also somewhat cynically ironic If the creature hadn't stowed away on the ship, Carruthers would have most likely been found guilty of the charges against him.　　The intelligent script (see what I mean about rareity) was penned by noted Science-Fiction author Jerome Bixby (remember Twilight Zone's It's a Good Life) The picture's taut editing eliminates any extraneous dross. (ALIEN tended to drag in its first hour with its sophomoric dialogue, and why did it have to include that stupid and ultimately counter-productive sub-plot of Ash being a robot, and further dragging the story down to another big bad conspiracy cliche UNNECESSARY!!!)　　Director Cahn astutely keeps the rubber-suited monster off-screen and in the shadows through-out most of the proceedings, keeping your paranoid imagination on constant alert. Unfortunately, perhaps at the studio's commercial insistance, it is a little over-revealed at the climax, but I haven't claimed this to be the perfect masterpiece. The performances, though nothing award-winning, are nevertheless cool enough so that one becomes sincerely concerned as to their fates. Not many movies in recent times ever come close to achieving that. They can be over-produced from here to eternity, and usually only succeed in being gloriously annoying.　　This film's story is not really totally original (what is), for it is based on A.E. Van Vogt's VOYAGE OF THE SPACE BEAGLE. All ALIEN fanatics should track down an old used copy to see where the initial influence came from.　　As long as you're not craving another CGI wind-ding, you may find it worthwhile. Just don't expect the women to be Ripley precursors. This was still the sock-knitting fifties, sad to say.

《外星恶客》是一部以科幻为题材的电影，讲述了一群外星恶人入侵地球的故事。这些外星恶人具有高度发达的科技和强大的力量，他们来自遥远的星球，目的是要征服地球并控制人类。

电影的开篇是一场外星恶人的太空船降落在地球上的壮观景象，随之而来的是一连串的破坏和恐慌。人们被迫逃离家园，城市变得一片混乱。政府军队不敌外星恶人的力量，世界陷入危机之中。

在这样的危急时刻，一群科学家和军事专家组成了一个特别小组，他们决定与外星恶人展开一场生死较量。这些科学家和军事专家利用他们的智慧和勇气，研究外星恶人的弱点并设计出了一系列对抗计划。

在经过一番激烈的战斗后，地球人最终找到了外星恶人的弱点，成功消灭了他们的主要力量。外星恶人被迫撤退，地球再次回到和平与安宁之中。人们为这场胜利欢呼，感谢那些无私奉献的科学家和军事专家。

《外星恶客》通过科幻的视角，向我们展示了对未知力量的恐惧以及人类智慧和勇气的重要性。在面对外星恶人这样的强大敌人时，人类团结一致，共同对抗，最终取得了胜利。这部电影不仅充满了惊险刺激的场面，也让我们思考人类在面对危机时的力量和智慧。

总的来说，《外星恶客》是一部充满想象力和创意的科幻电影，它引发了观众对未知世界和外星生命的好奇心，同时也传递了人类团结和勇敢的精神。这部电影不仅令人震撼，更让我们对未来充满信心。