Goofs

Mom eats Bao yet he reappears all grown up toward the end of the story.

Correction: the son was real (see the family photos on the wall above the dining table) and the living bun was a dream, playing out the real life events of the son leaving home.

Touch tone telephones should have twelve buttons, but there are only the first nine buttons (1 to 9).

When Bao is sitting on his bed a portable game device is shown, likely a Nintendo Gameboy. These devices typically have a directional D-pad and two buttons, but only a single button is shown.