In the 8th part of the Star Wars documentary we learn how hard it was to create a new language, the language of the ewok and that the final battle of the ewoks vs The Empire was supposed to be a battle between the whookies and The Empire.
George Lucas explained once again that the special effects had to make use to toys and figurines with studio sets to make the film a reality. Incredible as the movie is, most of the action and the space fighting was done using stop motion movies and a ton of toys.
Well done, George Lucas, well done!
Check more on TAG Star Wars Documentary.