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Revealing mistake: When Barry has shot the alien in the head at the beach the camera is filming the aliens feet as the blood starts dripping. Then the camera start moving up and when the camera reach the alien's waist level you can see a sudden cut. This is done so the fake alien puppy with half its head gone can be used. (00:03:15)

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Continuity mistake: When Derek is holding onto the rope at the cliffs, we see the alien cut the rope. Later we see Derek holding onto the rope again. (00:21:30)

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Audio problem: When Barry realizes he is out of bullets, he runs away. It cuts to the aliens running after him. You can see one of the aliens fire at him, but you can't hear any gunshot. (01:04:55)

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Continuity mistake: When Derek is lying on the ground by his car, his scarf is tied down to his crotch. When it cuts, it's tied down to his chest. (01:01:10)

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Continuity mistake: When all the aliens are eating from the bowl of vomit, one of the aliens has vomit around his mouth before eating from the bowl. (00:47:30)

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Visible crew/equipment: When the blood from the alien is pouring over Derek, some crew members are visible in Derek's glasses. (00:18:15)

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Continuity mistake: When Derek shoots a hole through an alien, the alien falls over him almost going to the ground. When it cuts, the alien's head is side by side with Derek's head. (00:18:15)

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Revealing mistake: When Derek is about to run over the alien with the machine gun, the alien drops the magazine from the machine gun. You can see he is lifting his little finger revealing that he intentionally drops the magazine. (01:02:30)

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Revealing mistake: When Derek kicks the alien which has been cut in half, you can see the ground beneath the alien move making it obvious the lower part of the alien is buried in the ground. (01:03:30)

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Audio problem: When the camera is filming Barry from behind, he is talking about the alien and says "He must have been going somewhere". You can see his mouth isn't moving. (00:16:05)

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Continuity mistake: When the collector gets hit in the head by the chef, he falls and slides down the stairs. He slides down about five steps, but when it cuts, it's only two steps. (00:32:40)

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Visible crew/equipment: When Frank is listening to the alien leader and realizes the entire town is stuffed into the boxes, he goes back to the rest of the guys. When he closes the door, the shadow of the camera man is visible on the door. Shadows from crew members are visible in this same room several times. (00:43:35)

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Continuity mistake: When Robert manages to free himself from the collector's car, he keeps running after the car. He grabs the bumper which falls off. Robert falls to the ground beside the bumper. When it cuts, he has moved away from the bumper. (00:30:15)

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Revealing mistake: When the collector gets into his car, he tries to close the car window. Robert puts his hand through the window. The collector manages to close it well enough to trap Robert's hand and takes off in his car. From a camera view outside the car, you can see the window isn't closed enough for Robert's hand to be trapped. (00:29:30)

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