No começo de Star Wars IV. Quando C-3PO e R2D2 pousam em Tatooine, parece que o C-3PO não sabe onde ele está?
Por que o C-3PO não reconhece seu planeta natal?
Porque no final do Episódio III, C-3PO teve sua memória apagada pelo capitão Antilles
“How lovely!” C-3PO exclaimed. “His daughter is the child of Master Anakin and Senator Amidala,” he explained to R2-D2. “I can hardly wait to tell her all about her parents! I’m sure she will be very proud-“
“Oh, and the protocol droid?” Senator Organa said thoughtfully. “Have its mind wiped.” The captain saluted. “Oh,” said C-3PO. “Oh, dear.” - Star Wars: Revenge of the Sith - Novelisation
No final de Episódio III de Star Wars: A Vingança dos Sith :
C-3PO and R2-D2 fall into the custody of Bail Organa, who orders that C-3PO's memories be erased to protect the twins from their father.
Abaixo na escala de canon, também temos a seguinte citação do Vader vs. Artoo & Threepio :
Vader: "No… I am your creator!"
[...]
C-3PO: "Noooo!! You see, sir, shortly after the Jedi were wiped out, my memory was erased. So that could explain why I'm having difficulty verifying your statement."
E em um romance da UE, o C-3PO foi aconselhado pelo droid CP-16 do protocolo prateado a aceitar uma limpeza de memória se a situação surgisse:
C-3PO conferred with a silver protocol droid who warned him that dark times were ahead. He told C-3PO to accept a memory wipe if it was ever offered, as the alternative would be living in confusion as the lines between good and evil were blurred.
Tags star-wars a-new-hope