nisantis said:
Any Marvel story involving the Infinity Gauntlet. Sure, the Mind Gem gets put to good use individually every once in a while, but any time the whole set comes together, it's like it's only there to fill the last slot. (Same for the Soul Gem, but it's a little less clear what that one actually does.)
I'm still really salty that we got a good scene in Age of Ultron, and then the Mind Stone's power isn't used anymore.
Personally speaking,
most instances of MC in mainstream media pretty much count as missed opportunities for me, because a) it only happens to the guys (possibly because of some concerns linked with the rapey nature of the concept, but idk that's just my suspicion), or b) it does happen to some ladies, but it's offscreen (or, perhaps more annoyingly, it's shot in a way that makes it almost impossible to see what happens).
I remember specifically a (pretty garbage) movie called Shadows of the Dead, which might remain top of my personal list for missed MC opportunities.
I'll paste what I wrote about it in another forum:
"1) Despite most characters ending up possessed, and the possession looking fairly hot in my book, there's only one (!) onscreen possession.
2) Despite there being two female characters possessed (including the first victim), we don't see it happen to them directly. The first girl is done while it cuts to her cell phone having fallen on the ground as we hear her (and see part of her body) convulse, and the second just has blood spit in the face, and we don't see her go under.
3) Despite the creature attempting to possess the main heroine at the end, complete with visible black tar going in her face and her eyes turning black, she of course has to be saved by that dickwad of a male lead - oh how I wish they could film alternate endings more often.
4) There's a hot female cop and she never gets possessed (but that's more of a pet peeve, and not really a valid complaint, even by our standards)."There's also an episode of the comedy series Chuck ("Chuck Versus the Suburbs") that has the main character being strapped into a chair for a brainwashing session. His hot girlfriend/agent partner gets strapped in too, but is rescued before it happens to her.