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 is below.
Q: 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?
A: What's the meaning behind the phrase "The blood stays on the blade"?
Rationale: 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
Q: Saw this 1959 Hitchcock's masterpiece Rear Window last night. One of the great classics! Enjoyed it!  I just didn't get one thing. Why didn't Lisa (Grace Kelly) tell the complete plot and truth about Thorwald when the police arrived at his home? Why did she get herself arrested and made the things more tense? Thorwald could have ran away from that place (but thank god it didn't happen)! :-/
A:
Why didn't Lisa tell the truth about Thorwald to the police?