instruction:
Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title
question:
Early in Rogue One, we learn that Galen Erso at one time worked as a scientist for the Empire. Based on this previous experience, Krennic intended to manipulate Erso into rejoining the Empire to work on the Death Star.  What lead to Galen Erso to leave the Empire?
answer:
Why did Galen Erso abandon the Empire?


question:
In The Dreamers when Matthew tries to convince both Isabelle and Theo to not leave him, why don't they listen to him and join the riot? Both characters are really hard to understand but their thoughts portrayed in the movie are yet so simple and intriguing.
answer:
Why Isabelle and Theo leave Matthew in the end?


question:
I'm always confused about the quote "Ouch, ouch, you're on my hair." in the movie Wedding Crashers. What does it really mean? When this quote is being translated into the Chinese version, it means "Stop touching my hair during sex." It just sounds ridiculous to me.
answer:

What does you're on my hair signifies in Wedding Crashers?