i saw it too it was really good. Ive seen horror movies like, the shinning, the exorcist, nightmare on elm street and they didnt scare me, war of the world scared the crap out of me.
I think the main reason was bcoz i saw it a day after the terrorism in London, that wasnt one of my best ideas to see the film then, there was some relality in the devestation. I know its about aliens but the scariest parts was just the panic of ppl in that situation. it was really good tho.