I think the biggest problem with this movie is the battle of Endor. The ground portion of it, anyway. IMO, it simply looks childish the way the Ewoks are taking out the storm troopers. They hit them with sticks and punches them, yet it is plainly obvious that their blows aren't forceful at all. It looks almost like their poking them. The battle is played for laughts, which it shouldn't be. The battles of Hoth and Yavin were serious without cartoony humour.

Those who defend the battle usually say that the ewoks were loosing, that it was only Chewie stealing the scout walker that changed the course and brought the battle arround. Fair enough, but the movie does not convey this fact. Before that point, the movie shows plenty of ewoks ambushing storm troopers, but only a measly 1 ewok gets killed. Compare that to the novel, where the ewoks are almost slaughtered, but their great strenght in numbers assures that they keep on coming.

I'm not sure if and how Ady would do it, but ROTJ would benefit greatly from cutting the silliest, most unconvincing parts, and somehow add many more ewok causulties. Not that we need to linger on them, like with Corpsey (yes, that's his name apparantly), but just show it in passing. How that would be done is another matter though.