This review may contain spoilers. I can handle the truth.
Chris Allen’s review published on Letterboxd:
This review may contain spoilers.
(Oscar Week - Wednesday: Animated Shorts Symposium)
A short with a twist.
Song spoke about how she was a younger sister to an older brother, and since her friends families fell under the One Child Rule, they would always ask her what it was like having a sibling. She also interviewed her older brother to get his perspective on what it was like to have a younger sister. These two things played a huge part in the creation of Sister's story.