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
Robert Patrick Patrick credited his early appearances in films to his "tough-looking exterior". Patrick made a short appearance in "Die Hard 2" as a bit part henchman for Colonel Stuart before landing a role in "" (1991) as the main villain, the T-1000; it was his first starring role. James Cameron, the film's director, said he chose Patrick for the role because of his physical appearance, which he felt fit the role. During the filming of "Terminator 2: Judgment Day", Patrick was "broke", living in a cheap apartment with his girlfriend, Barbara, whom he married during filming. He has credited the film