T2-3D: Battle Across Time simultaneously at 30 frames per second. Several elements of "T2 3-D: Battle Across Time" have been patented by Universal, including the seat drop effect, the blending of live action and film, the trio of projection screens, and the simulated assault weapons. The film was shot at the abandoned Eagle Mountain iron ore mine, just north of Desert Center in California. The cast and crew from the first two Terminator films returned for the shoot, including Arnold Schwarzenegger as The Terminator, Linda Hamilton as Sarah Connor, Robert Patrick as T-1000, and Edward Furlong as John Connor. To achieve the 3-D effect
T-1000 reform and reshape itself at will, due to its "cells" having been programmed by Skynet with on-board nanotechnology. This technology can be programmed with commands from Skynet, and can help the T-1000 scan the cellular makeup of whatever it is touching (including the DNA of living animals), and can magnetically attract broken off pieces of itself back to the main body. The T-1000's weaknesses are extreme temperatures and its overall lack of knowledge concerning other Terminators. When it was frozen solid from a coating of liquid nitrogen, it could not move; it was then shot by the Terminator and split