Watching Sarah Connor struggle with her emotional instability is a lot harder in light of Linda Hamilton later admitting to suffering from bipolar disorder in real life.
John Connor mentioning that the Russians are "our friends now." Wait until 2014!
James Cameron first thought of casting Michael Biehn as the T-1000, but ultimately decided that Kyle's actor now being the Terminator would be confusing. Cue Terminator Genisys, and John Connor himself becomes a shapeshifting Terminator.
Hell Is That Noise: The mixture of metallic screeching and animal screams that the T-1000 makes after being blown apart by the grenade.
As well as his leitmotif of a blaring bass drone. As soon as you start hearing it, things are really looking problematic for the heroes.
Misaimed Fandom: An examination of a woman nearly losing her sanity and humanity due to being burdened with terrible, unfathomable knowledge is often mistaken for being a good mother and heroine.
Narm: John's "acting human" lessons have really not aged well.
Nightmare Retardant: The T-1000's glitches in the Special Edition. In fact, this trope was the entire reason Cameron left it out of the original theatrical release, as he felt that it distracted from the tension of the film. Part of the draw of the movie, as many professional critics noted, was that audiences weren't able to figure out—right up until the end—what could actually hurt the T-1000.
One-Scene Wonder: Michael Edwards has less than a minute of screentime, but his appearance as the adult John Connor in the prologue has remained a favorite of fans.
Signature Line: In case you haven't figured it out yet: "Hasta la vista, baby!"
Visual Effects of Awesome: The T-1000 completely blew the audience's minds when Terminator 2 came out, and still looks amazing today. Terminator 2 and Jurassic Park are credited for the CGI revolution.
Woolseyism: The famous line "Hasta la vista, baby!" became "¡Sayonara, baby!" in the Spaniard dub. It became just as popular in Spain as the original in America.