Screenwriters know that ultimately their craft may touch people in unexpected ways.
“… My wife cries after almost every movie we see together with a happy or sad ending. One day, we finished watching all 6 episodes of Star Wars (one per day) and she just lost it! I couldn’t help but laugh because she was crying about R2D2 and Vader! So, I jumped up, grabbed our camera, and got an amazing interview from her. I then did what any loving husband would do… I uploaded it to YouTube 
…”
(via Alyssa Milano via Joseph Cannizzaro)