POLL: Vote for what you think is the best (or worst) SPOILER of all time!

[SanAndreasX]

Robert_Downey_Jr. said:

I mean I'm not old enough to have figured it out as an adult because it's so part of the pop culture lexicon now, but watching them as an adult they REALLY hint strongly at it throughout the second movie especially

The thing that always got me, honestly, was the love triangle they seemed to be building between Luke, Leia, and Han early on in the first couple of movies, only to reveal near the end of Return of the Jedi that Luke and Leia were sibs.  I guess since the romance was kept on a G-rated level it wasn't exactly icky, but more like an "oooooh-kay" thing.