User blog comment:Rena Charming/List of unanswered questions/@comment-4689777-20140706145549

"In the pilot, Snow tells Charming the Evil Queen poisoned her with an apple because she was "prettier" than her. Of course viewers learn later in the season that the actual reason is a lot less shallow than that. This might just be a continuity error or a total Retcon by the creators, but it maybe because in the pilot they first show the scenes in Enchanted Forest being first read from the book by Henry. The book probably contains more simplified versions of actual events than what happened in the Enchanted Forest and doesn't mention Daniel or Cora at all. It also explains why Henry is so hard on Regina because it seems that she is evil for such petty reasons. It might also be that at the time Snow says that, she does not feel comfortable going into the real reasons, which would involve owning up to the greatest mistake she ever made in her life—a mistake that still haunts her even in the present (as she demonstrates in S2 when she remonstrates with Emma over her guilt for not believing Henry)."