In truth, “Extremely Loud & Incredibly Close” isn't about Sept. 11. It's about the impulse to drain that day of its specificity and turn it into yet another wellspring of generic emotions: sadness, loneliness, happiness. This is how kitsch works. It exploits familiar images, be they puppies or babies - or, as in the case of this movie, the twin towers - and tries to make us feel good, even virtuous, simply about feeling. And, yes, you may cry, but when tears are milked as they are here, the truer response should be rage.