A lot of fans criticize the new Star Wars movies, including Episode 1, Episode 2, and Episode 3. But while the story telling, the acting, and the writing is not top of the class, what are they praised for is the visual effects.
Even the old Star Wars movies were pioneers in the terms of visual effects, how are they done, makeup, and more.
This documentary shows everything that helped the crew and the director get their characters in Star Wars Episode 2. The team used puppets, and then visually got them into the movie.
It is definitely something worth watching, just so you can understand the effort that goes into a movie like Star Wars. While we have the green screen nowadays, back then, directors actually used puppets for visual effects.