I think there are only two solutions:
1° You re-shot all these three movies with a new crew.
2° You forget them forever !
... And believe me the 2nd solution is possible, 'cause I did. (I can' t remember the least detail from the Ep 3, even when I saw a bunch of photo I was seeking for a CD backcover. Only I remember the creepy Emperor who was very interesting)
;)