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 sequel was that both Terminators sent to the past would be T-800s like the one played by Arnold Schwarzenegger, with one being stripped down to a metal endoskeleton like the one from the original film. Once Cameron actually started working on the script, in 1990, he figured a better way was to turn the evil Terminator into a more advanced model. Cameron's original pick to play the T-1000 was rock musician Billy Idol, and storyboards had the robot resembling him, but a serious motorcycle accident prevented Idol from accepting the role. Then, he thought of casting actor Michael Biehn, who