nightstalkerpoet said:
The Wizard of Oz is self-contained. The visuals of the film only need to meet the standard of the other visuals in the film.
Star Wars is different, in that there is a twenty five year technology gap between the first one produced and the last one produced.
Are you kidding? There were 46 years between the first Wizard of Oz movie and the last one produced (another slated for 2014), and the visual styles of the movies were markedly different. The Wizard of Oz most definitely has a rich EU spanning decades. And it, like every other classic film, does not need to be updated to match current filmmaking trends.