Erikstormtrooper said:
Well, in English "Jedi" can be either singular or plural. So it's always been kind of vague.
EXACTLY! But in some languages, you can't pull off this kind of subtlety - at least in French anyway. In English, the article "the" can be used for singular or plural. In French you have Le or La (depending on whether the word is masculin or feminin) for singular nouns and then you have Les which is used for everything plural.
So a translator has the make a decision...is it Return of the (singular) Jedi...or Return of the (plural) Jedi? This one person has to make the decision of whether the film relates to simply the return of Luke Skywalker...or the return of the Jedi in general.