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* HarsherInHindsight: The imagery of a flying craft ramming into a famous monument and causing it to collapse may have sounded like something that could never happen, but 45 years later [[UsefulNotes/TheWarOnTerror that became reality]]. It gets even worse when you remember that United Airlines Flight 93 was headed toward a target located in Washington D.C.
* SpecialEffectFailure: It's definitely the case when the characters run endlessly against a backprojected burning forest.
* TearJerker: After some of their own are killed by the Earthlings, in self-defense. The aliens murder the still mind-controlled (and helpless) General Hanley and the policeman with him. Killing the poor men by throwing them out of one of their ships from a high altitude. Poor Carol is even ForcedToWatch as it happens.