Extremely underrated and incredible
The only problem you will really find with this movie is the annoying kids. However aside from that, it was beyond incredible. I actually felt like the world was being taken over. So many amazing scenes.... The hilltop battle, bodies in the river, all these people getting disintegrated etc. It's pretty damn terrifying and it's by far the best alien invasion film I've seen. Beautiful cinematography and an amazing score. I love this film and don't get the hate. Just my opinion.
Also
This movie created such a sense of hopelessness and anxiety. I remember watching it and it actually felt a bit like watching the 9/11 attacks. I don't mean that to be offensive, but the movie evokes a lot of emotions from the "early post 9/11" area. People dying in mass and running and screaming. The film looks pretty realistic and it's eerie.... Almost surreal, yet realistic.
Best example is the train scene. A burning train goes by and the on lookers just stand there with no reaction. The train passes and it's dead silent. Very creepy.