Signs

Visible crew/equipment: In the scene where Graham and Reddy are talking at the side of Reddy's car window, Reddy speeds away and you can clearly see the reflection of the camera on the car and in the car's tinted windows. (00:54:50)

Continuity mistake: When Merrill delivers the final blow to the alien, you see it fall into a table and knock over a single glass of water from the alien's perspective. In the next shot, the top of the table is shown with three tipped glasses. (01:37:40)

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Officer Caroline: Merrill... how's work at the gas station?
Merrill: Stimulating.

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Trivia: Ray Reddy (the man who accidentally killed Graham's wife), is the writer/director/producer of the film, M. Night Shyamalan.

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Question: First, let me say that the aliens being affected by only the "contaminants" in the tap water seems to be wrong. Two reason: 1)The Indian vet mentions that they don't like water, and 2) the aliens were avoiding areas with large bodies of water nearby. My question is this: wouldn't humans, who are over half water, be toxic to the aliens? Even if they processed the humans with different equipment and took precautions to avoid blood or body fluids, wouldn't carrying off a sweaty person burn the aliens? Seems like a dangerous harvest.

Answer: It could be that they are affected by the chlorine in the tap water (humans are affected by chlorine to, just look at Mustard Gas) to a greater extent then humans. The vet is only speculating about the landing sites. And while it is true that humans are mostly water, it is saline (i.e. salty like sweat) and has different chemical properties to pure H2O.

Soylent Purple
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