While the characters were running around a hot steel mill, in reality the temperatures in the mill averaged only about 40 degrees. The actors had to be consistently spritzed with water to make it look like they were sweating. See more...
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Terminator 2: Judgment Day (1991) - 7 mistakes
Continuity: During the escape from Pescendaro, the Terminator shoots the T-1000's head and the T-1000's head splits apart. When this happens Doctor Silberman can be seen nervously in the background. The shot then cuts to the Terminator, John and Sarah and then the shot cuts back to the T-1000. However, when the shot cuts back to the T-1000, Doctor Silberman isn't there any more.