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: What was the reason behind the conversion of human into USB in the movie Lucy?   Why did the heroine change herself into USB when she used 100% of her mind, and then texted the policeman ("I am everywhere")?   She traverses many old eras, and in the end just forms a strange structure, giving the researcher (scientist) USB and then that huge structure falls off?
Solution:
Why did Lucy convert herself into a USB?