* CreatorBreakdown: When originally evisioning the plot of ''Son'', Lois Lowry's original plans [[WhatCouldHaveBeen was to focus on Gabe's search for his mother.]] This change however when the more she wrote, the more she began to emulate with Gabe's mother due to her own feelings of missing her deceased son. Gabe's mother Clare ended up becoming the primary view point character.
* DawsonCasting: Eleven-year-old Jonas will be played in the movie by 24-year-old Brenton Thwaites.