Seems to me mountain climbing and cannibalism go together like two things that go together very well.
Didn't I read a book about this combo already?
No! Soccer players not mountain-climbers.
This is my first attempt at writing a novel, and I'm finding that so many ideas I have had for it came from old concepts lodged in my brain that are not even conscious to me anymore. I suddenly have more sympathy for people who are charged with ripping others off. For example, I was watching "The Golden Voyage of Sinbad" for the first time since childhood the other day, and realized that I had unintentionally ripped off a whole scene from that film in my book. Then I created a character who in hindsight
is Sacajawea even though I was not conscious of this as I was writing her. I had forgotten about her story for decades.
So for all I know, the mountain/cannibal connection in my book is indeed there because of "Alive" although, as you point out, FONPR, these are climbers, not plane crash survivors.
It's amazing how little is original under the sun. I am trying to write every paragraph to be as original as possible, yet here I am...the Carlos Mencia of authors.