Read the book Please people, read the book. This isn't ID4. This movie is about society and how it would react to an unexpected and unstoppable attack. One of the complains is about the machines being buried. Well, they never say how deep and anyway, it's just guess work about what really happened. Our communications are down. Apart from the continuity errors(there are plenty) the movie works pretty well. A father who doesn't like being a father, but having to behave like one and two obnoxious kids more worried about themselves it's actually a good snapshot of our individualistic society today. People don't know where to run cause the damn machines are everywhere. The boat part it's borrowed from the book( in the book they are trying to scape england and here they are trying to cross a river). The basement part is also from the book, including the probes( but not the aliens). The scene was actually rushed in name of continuity, cause it last longer in the book. It's all about the question posed in the whole book and movie: what would you do to survive? The boy was a waste of space in the movie and I think that''s why they sent him away, but in the book, the main character's fiancé( if I'm not mistaken) also goes in a different direction, meeting him in a still unharmed place. You have to concede that the aliens were moving from a zero ground to broader areas, so that would explain why they haven't reach Boston downtown, only it's suburbia. So, that's it, I think people expected a action hero type of film and were disappointed not with it's flaws but by the different approach, blaming the flaws only to look clever. I like it and would watch it gain many times.