Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title
One example: At the beginning of the movie Gangs of New York, Priest Vallon tells his son not to wipe the blood of the blade after he's cut himself shaving, saying "The blood stays on the blade". I've watched the movie multiple times, but can never find what the meaning behind that phrase is. Anyone able to shed some light on this?
Solution is here: What's the meaning behind the phrase "The blood stays on the blade"?
Explanation: A person gives a detailed description about a scene from the movie Gangs of New York and asks the meaning of a said phase in the scene. The question is summarized as What's the meaning behind the phrase "The blood stays on the blade"? for easy indexing the next time someone searches for a similar phrase

Now, solve this: Right before the final fight, we see Loki and Stark discussing the terms of the upcoming battle, bantering back and forth between who will win.  It is then that Loki gets the idea of turning Stark against his comrades like he did with Hawkeye, as well as a bunch of other S.H.I.E.L.D. agents at the beginning of the movie.  But, it doesn't work at all.     Is this because of Stark's Arc Reactor countering the Cosmic powers somehow, because Stark is incorruptible (which doesn't make much sense), or possibly because simply he was touching the Arc Reactor and not Stark's flesh?  Either way, is there an explanation of why this did not work on Tony?
Solution:
Why didn't Loki's mind control work on Tony Stark?