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

Input: Consider Input: In the movie Deathly Hallows Part 1, Harry Potter did not disguise himself using polyjuice potion at the wedding of Bill and Fleur. But in the book he was disguised as a cousin of the Weasleys, Barny Weasley, because there were threats.  Shouldn't he have disguised himself, as Death Eaters might be around looking for him? Why did they not take that matter seriously in the movie?

Output: Why did Harry not use Polyjuice Potion at the wedding of Bill and Fleur?


Input: Consider Input: Didn't he stand a better chance of fighting back, given he has a gun, and was good with it? Instead, he wasted the little energy he had left so he can sit at a river...    to enjoy his last moments.

Output: Why did Mike get out of the car after being shot?


Input: Consider Input: I love Zombieland. I happened to watch it last week on FX a couple of times in a row, and I was thinking after the movie that it never really showed us about their eating habits and how they survive during the zombie apocalypse. We know Harrelson's character was obsessed with Twinkies, but he didn't find one until the end, and there was this truck with snowballs in the movie. There was no reference further in the movie if they were surviving on that.  What do all the main characters eat during the course of the movie?   Judging from the timeline in the movie I wonder if all the grocery stores in towns stopped carrying fresh food after the mutation struck? Anyone have any interesting answers to my question?


Output: What do main characters survive on during the zombie apocalypse?