"The problem may be with the alien invasion itself. It is not very interesting. We learn that countless years ago, invaders presumably but not necessarily from Mars buried huge machines all over the Earth. Now they activate them with lightning bolts, each one containing an alien (in what form, it is hard to say). With the aliens at the controls, these machines crash up out of the Earth, stand on three towering but spindly legs and begin to zap the planet with death rays. Later, their tentacles suck our blood and fill steel baskets with our writhing bodies. To what purpose? Why zap what you later want to harvest? Why harvest humans? And, for that matter, why balance these towering machines on ill-designed supports? If evolution has taught us anything, it is that limbs of living things, from men to dinosaurs to spiders to centipedes, tend to come in numbers divisible by two. Three legs are inherently not stable, as the movie demonstrates when one leg of a giant tripod is damaged, and it falls helplessly to the ground. The tripods are indeed faithful to the original illustrations for H.G. Wells' novel The War of the Worlds, and to the machines described in the historic 1938 Orson Welles radio broadcast. But the book and radio program depended on our imaginations to make them believable, and the movie came at a time of lower expectations in visual effects. You look at Spielberg's machines and you don't get much worked up, because you're seeing not alien menace but clumsy retro design. Perhaps it would have been a good idea to set the movie in 1898, at the time of Wells' novel, when the tripods represented a state-of-the-art alien invasion."