Although Arnold originally would not do this film unless James Cameron was involved, the latter urged Arnold to go ahead and do it anyway, and at the same time ask for a huge chunk of money. See more...
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During the "target acquired" chase scene when the red pickup truck flips over after going through the split semi-trailer there is an overhead shot shown of the action. The next shot when the T-X looks in her rear view mirror at the action, the camera crane that filmed the previous overhead shot is visible in the background.