This is one of the best videos that I have ever seen online! Everything you hear in this video is taken from 'Terminator 2: Judgement Day'. Rock on!! :)
The YouTube user is Fagottron. Here is his description:
Comprising nothing but small sounds recorded from the James Cameron masterpiece 'Terminator 2: Judgement Day', 'Skynet Symphonic' is my tribute to one of the greatest action features of all time! Each section is composed entirely of sounds from a major scene in the film. For example, the Terminator pounding on the fire escape door is used as a kick drum. Bones breaking play the role of a snare. Electrical disturbance acts as a crash cymbal. Turn up your cones and enjoy!