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 the metal skeleton effects of the T-800. The visual effects used in "Terminator 2" to create the T-1000 won the Academy Award for Visual Effects. Entity FX, Inc. is responsible for the visual effects of the T-1001 on "Terminator: The Sarah Connor Chronicles", along with the digital animation of endoskeletons, Hunter-Killers, and the future war sequences on the second season of the show. The company also contributed the digital imagery of James Cameron's "True Lies" and "Titanic". In "Terminator Genisys", the effects of the T-1000 were made by British effects company Double Negative, also responsible for the T-3000 and T-5000