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 Connor and prevent him from becoming the leader of the human resistance. A second, less advanced Terminator (Schwarzenegger) is also sent back in time to protect John. "Terminator 2: Judgement Day" was released in the United States on July 3, 1991. Its visual effects saw breakthroughs in computer-generated imagery, including the first use of natural human motion for a computer-generated character and the first partially computer-generated main character. It was a critical and commercial success and influenced popular culture, especially the use of visual effects in films. It received several accolades, including Academy Awards for Best Sound Editing, Best Sound