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

Q: In Game Of Thrones Season 4, the wildling Craster leaves his sons, from his wives (at the same time his daughters), into the woods to be taken by the White Walkers' king, after that he turned them into new White Walkers. I tried to figure out the reason behind this event, but no clues.  So, What is the story behind this action? And why does the White Walkers' king need those new born babies?

A: Why does Craster give those sacrifices to the White Walkers?
****
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?

A: Meaning of Scrapper 142's words to Thor
****
Q: I am trying to understand what happened at the end of "The Favourite":    Emma Stone squeezes a rabbit with her foot, Olivia Colman asks her to rub her leg and then there is a strange montage of rabbits.

A:
What does the ending of "The Favourite" mean?
****