Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title
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?
Example solution: What's the meaning behind the phrase "The blood stays on the blade"?
Example 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

Problem: I'm watching old episodes of Batman: The Animated Series on Amazon.com, and I notice several of them have, instead of the iconic B:TAS opening, an opening featuring Superman. Is there any difference in these episodes? Are they remastered or anything? Or is it just random choice on Amazon's part? For example, on Amazon streaming, the pilot episode "On Leather Wings" had the opening featuring Superman, while the next episode, "Christmas with the Joker", had the one I expected. There were a few others with the opening featuring Superman as well, it seemed somewhat random. ETA: This opening: Vs this one: ETA 2: "Fear of Victory" had yet another opening, featuring Robin. I give up. Amazon Prime is bizarre.
Solution: Why do some of the Batman: Animated Series episodes feature the Batman-Superman opening?