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
Terminator (character concept) were created by the Cyber Research Systems division of the U.S. Air Force to replace soldiers on the battlefield prior to Judgment Day, starting with the T-1. Although it has not been officially accepted as canon, a deleted scene from "Terminator 3" explains that the Terminators originated as part of a project by the US government to robotize the military using technology licensed from Cyberdyne, which at the time is considered "ancient history". The origin of the appearance and voice of all Terminators portrayed by Schwarzenegger is revealed when a group of scientists from Cyber Research Systems (CRS) presents several