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

Example Input: I've never understood how Kirk, Spock, and Bones got back to the present at the end of “City on the Edge of Forever”. Going back to 1930 is simple enough, they stepped through the portal at the right moment, but there was no portal on their end! How did they get back?  Finding an answer is proving to be difficult because even after trying numerous search-term permutations, I only managed to find a single mention of the discrepancy.  I can understand if maybe they wanted to focus on the emotion and stuff of the episode, but it's a science-fiction show, and this was one of the first incidents of time-travel in the whole franchise, so getting back is a fairly big issue that can't just be glossed over.
Example Output: How did they get back in “City on the Edge of Forever”?

Example Input: I know that there were many, many, many changes made from the book Ready Player One to the movie adaption. But the most puzzling to me is why the character called "Shoto" in the book was renamed "Sho" for the movie?  They kept his partner's name, Daito, the same. And since Daito and Shoto are both classifications of Japanese swords, it seems it would make more sense (especially for Japanese audiences) to keep the name as "Shoto".  Any idea why the filmmakers made this seemingly capricious change?
Example Output: Why was the character Shoto in the book renamed to Sho for the movie?

Example Input: In The Grand Budapest Hotel, Zero and Agatha smuggle tools into the prison by hiding them in pastries. Then there's a scene where a guard cuts up incoming packages - presumably to check for hidden contraband - but when the guard sees the pastries he doesn't cut them up despite them being very suspiciously shaped. Why?
Example Output:
Why does the guard not check the pastries?