T-1000 played Kyle Reese in "The Terminator", in the role with the explanation that Skynet managed to acquire Reese's DNA and use it for a new Terminator. Cameron ultimately dropped this idea after deciding the audience would find it too confusing: eventually casting came down to Robert Patrick, as a deliberate contrast to the original Terminator - Cameron stated "I wanted to find someone who would be a good contrast to Arnold. If the 800 series is a kind of human Panzer tank, then the 1000 series had to be a Porsche." For a more machine-like performance, Patrick had to learn
T-1000 terminators. The animation was mostly similar to how it was done in "Terminator 2", only with more advanced fluid simulations. To properly depict the liquid metal being dissolved by acid, Double Negative's artists studied acid burning through aluminum, and had its final distorted forms inspired by "The Thing". In the "Terminator 2" storyline, the T-1000 is made of liquid metal. The T-800 explains that the T-1000 is a more advanced Terminator, composed entirely of a "mimetic polyalloy", rendering it capable of rapid shape shifting, near-perfect mimicry and rapid recovery from damage. Furthermore, it can use its ability to quickly liquify