The movie being about the start of a major worldwide war (with a heavy use of technology too), an interesting coincidence can be seen in the first truck chase sequence. Just as John and the Terminator speed under the bridge that the T-1000 crashes into, a message on the bridge can be read which says "CAUTION 9-11". The truck smashes right into it.

While the characters were running around a hot steel mill, in reality the temperatures in the mill averaged only about 40 degrees. The actors had to be consistently spritzed with water to make it look like they were sweating.

The minigun that the Terminator (Arnie) uses in the Cyberdyne scene was so heavy that Arnold Schwarzenegger was the only person on set strong enough to lift it.

Eddie Furlong was warned, at the very beginning of the scene where he rides out of the mall and the T-1000 is chasing him, that Robert Patrick could run exceptionally well. Furlong confidently said that Patrick wouldn't catch him. However, on the very first take, Patrick ran right up and tapped him on the shoulder. So if this was real life, the human race would be in trouble.

When the 1000 robot follows them in the helicopter, we can clearly see that he has 3 arms when he is loading his gun with 2 arms and steering with the third. OK, it might be able to generate arms at will, but worth a look...

The scene in which the T-1000 commandeers the police chopper at Cyberdyne and, while still in his liquid metal form, orders the copilot out, was the first time a fully computer generated character in a movie spoke.

Note that, even when running, T-1000 never breathes through his mouth. Breathing through his nose helped Robert Patrick make his character look mechanical.

The battle rifles carried by the endoskeletons in the Future War segment were created by fitting a fully-automatic Calico 950 handgun, with a 100-round helical-feed magazine, into a fiberglass shell.

Jim Cameron once quoted "You can do anything to a terminator, but don't break his sunglasses, that really pisses them off."

Actors Robert Patrick (T-1000) and Joe Morton (Miles Dyson) would reunite more than 10 years later on Fox's 'The X-Files'. The plot of the episode is eerily similar to that of the Terminator: Joe Morton's character is given a second chance, going back in time one day at a time to stop a murderer from killing his wife, trying to clear his own name in the process. Very interesting similarity in themes.

Makeup artist Jeff Dawn has said that in order to give the Terminator (Arnold Schwarznegger) a look that set him apart from the other "human" actors, the makeup artists "mixed in a little bit of K-Y Jelly into the straight make-up, to give him that 'I'm different-looking but you don't know why' look...It's a sort of plastic-man appearance."

So that he didn't have to use a split screen, director James Cameron hired twins to play the security guard and his T-1000 double at the hospital. Linda Hamilton's twin sister Leslie Hamilton Gearren was used in the scene where the T-1000 is disguised as Sarah, although as the focus is on the T-1000, in those shots Linda Hamilton plays the robot with her sister playing Sarah.

The film cleverly mirrors the original on many occasions, many of them are featured here but one of the more subtle ones is the way Arnie gets up after being thrown through the window in the mall. It is shot the same way and he moves the same way as when he is on the ground outside the Tech Noir Club in T1.

When the Terminator shoots the last SWAT team member with a gas grenade, you hear him say (moan really) "ohh, that really hurt" in a soft pain-filled voice, just after he hits the ground. While not a mistake really, it is kind of funny. Submitted by Grumpy Scot

An unknown Edward Furlong (John Connor) who had never acted before was discovered by casting director Mali Finn at a boys' club in Pasadena, California.

When the T-1000 tells a man in the helicopter to "Get Out," this is the same thing the Terminator says in the first film (1984) when he takes the 18-wheeler. It's also used in T3.

In the shot where the SWAT van skids across the floor of the Cyberdyne main lobby and ends up with its back end against the elevator lobby, the tile floor was so slick that an industrial adhesive was sprayed all over the floor to allow for greater control.

The police computer which the T-1000 uses to locate John Connor's juvenile delinquent record was a functional mobile data terminal on loan from ElectroCom Automation. The prop was the subject of many crew members' inquiries of "Hey, can you look up my record for any outstanding warrants?" They were disappointed when they found out it was not hooked into any actual police databases, but had been programmed to simply display John's record.

After the T-1000 throws the Terminator through the window in the mall, a shocked man is seen shooting photos with his camera. This man is Bill Wisher, a friend of Cameron's and co-writer of the script. Wisher also appears in "The Terminator" - he's the cop whose car the Terminator takes after the Tech Noir shootout ("One-L-nineteen").

The roiling pit of molten steel where the Terminator and T-1000 meet their ends is actually a Plexiglas trough which was filled with a mixture of water, powdered sugar and mineral oil, and lit from below with orange lights.