Did You Know?
The lava was primarily made of methylcellulose, the thickening agent used in fast-food milkshakes.
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Most of the fire trucks used in the movie were made by the Crown Corporation, a fire apparatus maker now closed down. The Crown fire trucks in the movie can be easily recognized by the double-vertical headlights.
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An elaborate miniaturized portion of the doomed city, which was destroyed as the lava flowed, was constructed inside hangar #1 at the San Bernardino International Airport.
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