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Revealing mistake: When the two boys crawl out of the water onto the dirt bank after jumping from the cliff to escape the Indominus Rex, the ground beneath them moves as if there is some sort of carpet beneath the muddy ground. (01:00:55)

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Other mistake: When Aang creates the ice spear things during the battle, he throws them into the ground surrounding a few firebenders. The firebenders freeze as if frozen entirely in ice, despite being only caged in by ice spikes.

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Continuity mistake: During the scenes at the Northern Water Tribe, there is a cut in the middle of Aang's lower lip that occasionally will disappear and reappear.

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Other mistake: Before the battle, the leader of the waterbenders says that he will have everyone extinguish as many sources of fire as possible. When the firebenders come up from the ground at the start of the battle, all of the torches lighting the city are lit.

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