10 Biggest Star Wars Retcons

7. Leia's Memory Of Her Mother

The prequels retroactively caused several problems with the original trilogy, with certain bits of information - like the fact that R2-D2 can fly, as seen in Attack of the Clones - working against the events of Lucas' first three movies.

One of the more confusing of these revolves around Princess Leia's connection to her mother, Padmé Amidala. In Return of the Jedi, Leia tells Luke that she remembers her real mother, proceeding to describe her as "beautiful", and "kind, but sad", implying that she'd spent at least a little bit of time with her.

However, in Revenge of the Sith, Padmé dies immediately after giving birth - so how could Leia have spent any time with her at all?

Though plenty of explanations for this have been bandied about over the years (such as Leia's Force ability allowing her to "sense" Padmé), the fact of the matter is that George Lucas didn't know Leia's mother was going to die in childbirth while writing Return of the Jedi, making Padmé's untimely end a retcon of Leia's memories.