A meteor is investigated by some vacationing scientists. But the "meteor" isn't ... instead it heralds a mightly invasion fleet from Mars.

One of the handful of truly great classic science fiction films modernized and transplanted from H.G. Wells fantastic novel. Astonishing special effects which are only now beginning to pall besides their modern day successors and glorious unsurpassed sound effects.
Spoiled somewhat by lethargic performances from the leads and the heroine-will-twist-her-ankle mentality of the time. Mr. Spielberg has remade the thing to frankly lesser effect.

Ann Robinson gives valuable insight on the DVD commentary track.