Okay, so anybody who's seen Iron Man 3 at this point has seen how they suckered us in with the Mandarin in trailers and then neutered him. Whether or not you rolled with it for the sake of the movie or raged as Mandarin fans did it was pretty divisive and probably not the best decision.
Don't get me wrong, Guy Pearce was awesome and so was Ben Kingsley (while he was 'in character'). But really, it just came across like a half-assed version of the twists from Batman Begins and Dark Knight Rises: Big bad guy turns out to be an diversion, hired by the main villain who holds a grudge. Plus the motivation for Killian's grudge and evil was kinda lame.
All IMHO, of course.
Moving on, it's time to have fun with this debacle and make our OWN nonsensical plot twists. Choose a classic superhero movie, or any classic movie you love, and make up a sudden plot twist that's oh-so-clever! Whether it's somebody else being Luke's father, or the little boy and NOT Bruce Willis who was dead all along, let your imagination soar!