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 2: Judgment Day 15 times the $6.4 million budget of "The Terminator"—was reserved for "Terminator 2" making it the most expensive film made up to that point. A significant proportion of this was for actor and film-crew salaries. According to "The Daily Sentinel " and "The Daily Beast", Arnold Schwarzenegger was given a $11–12 million Gulfstream III business jet, while $5–6 million was allocated towards James Cameron's salary. The production itself, which included special effects and stunts, totalled $51 million. Although the film was commonly described by the media as the most expensive film ever made at the time, if adjusted for inflation,