While "War of the Worlds" is probably the most heralded of the 1950s alien invasion films, this one is a lot more fun. There are none of the heavy-anded quasi-religious sub-texts that weighed down WOTW. There are no pretensions of any kind. "Earth" gets right down to the business at hand...aliens coming to Earth with the sole purpose of kicking our asses. Throw in the always fun Harryhausen effects, in which real life monuments are destroyed (later incorporated in the equally dumb and equally fun "ID4"), and what's not to like?
Review of Earth vs. the Flying Saucers
