Question: Which kids do what acts for the talent show?
Question: Why does Evelyn kill Jeannine at the end? This isn't how the book goes and she's executed by Tori in Allegiant at the beginning.
Answer: Movies seldom follow books exactly as they were written. Details change, characters are eliminated or added, locales change, etc. This was probably done to compress and streamline the plot to better serve the film medium.
True but in the book it's more emotional when Tori does it as she did it to avenge her brother George whom she thought Jeannine killed.
Answer: Sally is a rodeo star, Charlie Brown a magician.