Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title

[EX Q]: At some point in Thor: Ragnarok, our favorite Valkyrie tells Thor:    Don't die. You know what I mean.   Maybe I'm missing something, but why the second part? It seems to be a self-explaining sentence. Despite rumors that the Asgardian gods can't die,     Odin died (old age)    Hela was surprised to see Thor and Loki alive    Hela dies at the end    So, what is Scrapper 142's meaning?
[EX A]: Meaning of Scrapper 142's words to Thor

[EX Q]: In Interstellar, when Murph visits her brother and his wife, she notices that their son is coughing hard, and she offers to arrange a visit from a doctor for him. The brother and his wife refuse, however, even though she warns them their son will die otherwise.  Did it signify anything? I thought that maybe it signified that there is an anti-science movement because of the blight. The brother certainly seemed to dislike his father and sister's scientific pursuits.
[EX A]: Why did Murph's brother and his wife refuse a doctor for their son in Interstellar?

[EX Q]: In The Flash S04E17 Null and Annoyed, there is a conversation between Ralph and Barry as such:    An improv group made up of superheroes? We can take it to Washington.  - We'd be the DC Comics.  - No, Ralph.   Usually the Arrowverse shows reference Marvel comics and it could be taken as the comic medium that the DC universe people reads... However, how does the "DC" universe have DC comics? Is this an oversight from the showrunners or are they referencing another DC comics that I do not know about?  TLDR: How does DC Comics exist in the DC universe (or) Are they referencing another DC comics?
[EX A]:
DC comics in Arrowverse?