10 Movies That Made Subtle Retcons They Hoped You Wouldn't Notice

10. John Connor's Age - Terminator 3: Rise Of The Machines

Terminator 2: Judgment Day makes it very clear that young John Connor (Edward Furlong) is just 10 years of age when duelling machines are sent back through time to kill and save him respectively.

However, Terminator 3: Rise Of The Machines makes a small yet significant adjustment to this, by having an older John (now played by Nick Stahl) claim in an opening narration that he was actually 13 years of age during the events of T2.

Director Jonathan Mostow actually made this retcon by mistake, by basing Connor's age on that of Edward Furlong while T2 was being shot, rather than deferring to the established age of Connor in the movie itself.

It's a retcon which creates a massive headache in the already soupy continuity and timeline of the Terminator movies, additionally suggesting that Sarah - who is said to be 29 years old in T2 - had John when she was just 16 years of age.

Between the iffy implications of her relationship with Kyle Reese (Michael Biehn) and the fact Linda Hamilton was clearly much older than that while shooting the original Terminator, rejigging John's age makes no sense at all and could've easily been remedied with the most basic of homework.

Fans being fans, of course, they immediately noticed and called it out.