Terminator 2: Judgment Day
The truck now appears to be attached to the back of the pickup, so Arnold can hop out, run along the top of his own vehicle, climb up on the hood of Officer Robert's ride, and shoot Officer Robert up with a semiautomatic rifle. Arnold reaches in through the now-shattered windshield and cranks the steering wheel, causing the truck to jackknife. He manages to get off before the truck, full of liquid nitrogen, hits part of the Generic Factory Setting.
The pickup, meanwhile, has passed a large vat of red-hot molten metal before crashing into a different part of the GFS. The nitrogen is running all over the place, looking all smoky and atmospheric as the extras clear the set.
John, Sarah, and Arnold, all looking pretty beat-up, watch as Officer Robert gets out of the truck and jumps to the ground, getting bathed in liquid nitrogen. There's cracking noises as he walks, and it's apparent that what was once made of "liquid metal" is quickly freezing and is now made of "solid, fairly brittle metal." He falls down as his legs stop working, and shatters when Arnold (saying "Hasta la vista, baby") shoots him with a pistol.
If you think that's the end of the movie, I have a poem which I'd like to read to you:
Some say Terminator 2 will end in fire,
Some say in ice.
From what I've tasted of the way unkillable movie villains always come back after you think you've killed them the first time
I hold with those who favor fire.
But if it didn't have to perish twice,
I think I know enough of futuristic time-traveling robotics
To know that for destruction ice
Is also great
And would suffice.
And, in fact, the molten metal is running all over the place, melting the pieces back down into liquid metal while Arnold says "We don't have much time." They ooze together like blobs of mercury, which is the only metal that comes to mind that's a liquid at room temperature. The Evil Terminator was made of mercury? Couldn't just touching him give you brain damage? Is that how they got the script?
The bits run together and John has to help Sarah, who was shot in the leg in the van. Officer Robert is fully reformed by the time the good guys limp off. This time, he's not running, but walking steadily and creepily. Arnold seems to know which way to go, and he leads the humans through various mechanical and technical parts of the GFS, all of which seem to be subject to random showers of sparks. They have to turn back when they almost walk into a big vat of molten metal (that crybaby Sarah says it's "too hot"). Arnold tells the humans to run along; he'll handle Officer Robert himself.