Mug From the Future?

thinkgeek.com has this fictitious company's coffee mug for sale with the warning, "drink up because SKYNET will become self aware soon." do you know the movie that it is referencing? is it:
a) terminator 2
b) night of the comet
c) back to the future III
double punches for all you movie geeks with the answer today or monday! the answer to friday's trivia is c) they are newlyweds.