It’s funny how the Ewoks are never named on screen (maybe in the credits, to be fair), but everyone knows they are Ewoks because of the merchandising, which so far as I can tell is their prime justification for existence. Yes, yes, I get the whole “naturalist primitives defeat industrial empire” thing going on… but how is the groundwork for that theme laid anywhere in the previous two episodes (IV or V)? The conflict (at least the primary conflict) is not between nature and technology, but between good and evil. I suppose there is all that stuff about Luke trusting his feelings rather than his targeting computer – but no where before VI do we have any hint that “getting back to nature” is going to be a thematic concern of this story. Everyone in the SW universe uses what we would recognize as advanced technology up to Ep VI, even the frakking Jawas. I guess if I were being more fair-minded I could give Lucas credit for introducing something new, but, more often than not, when you introduce something totally new in the last act of your story, it just feels clumsy and dumb. Think about, for example, if the final Cylon is revealed in 2009 to be some character we’ve never met before. There would be no end of protests. I feel the same way about the Rebel-Ewok alliance in Ep VI. You’re telling me the gang that figured out a way to blow up the first Death Star needs the help of teddy bears to bring the Empire down for good? C’mon!
If you are interested in whatever original plan Lucas had for Star Wars (he had a plan about as much as the Cylons turned out to have had a plan), you can find various script drafts and synposes in The Making of Star Wars. Be warned – the plot in its pre-Ep IV form is utterly incomprehensible. It sucks big-time. Having to streamline it to make “Star Wars” as one movie in 1977 was the best thing that ever happened to that story, and there are only the most superficial of resemblances to what was originally pawned off as “the plan all along.”
Pfeh.