Carrie FisherCarrie Fisher complained about her costumes in the previous twomovies. She said they were so long, you could not tell "she was a woman". Those complaints led to the skimpy outfit she wore as Jabba's prisoner. The costume became something of a running joke among the crew, because the metal framework that held the top together meant that the costume didn't move well with her. Since Fisher didn't like the industry standard solution of using double-sided tape, it became necessary before each take to have a wardrobe person check to ensure that her breasts were still snug inside the costume top (and several scenes had to be re-shot when "wardrobe malfunctions" occurred).
The growls and sounds of the Rancor in Jabba's Palace were actually made by a dachsund.
The raspy, labored breathing heard from Darth Vader at the end, after he kills the Emperor was originally meant to be how his breathing sounded when he was first introduced in Star Wars. The sound of this labored breathing was kept and used for this film.
Femi TaylorFemi Taylor was in such good shape even 15 years after the original release of the movie that she was re-hired as the dancer who Jabba feeds to the rancor since they were going to be extending the musical number for that scene for the re-release. The resulting scene is a combination of old and new shots and Femi TaylorFemi Taylor now has the distinction of being the only cast member from the original movie to reprise her role for the special edition.
The main chamber of Jabba's palace is connected to the entrance by a short flight of steps. When filming the scene where R2-D2 enters the chamber it was discovered that the droid could not roll down the stairs. In the movie we see R2-D2 approaching the stairs, then the camera moves to the left past the steps and the droid re-enters the field of view, having been manually hauled down the stairs.
The name Anakin is the accusative of the greek noun Anax, meaning "lord."
Endor is the name of a place in the Bible; it's a village found in Biblical Israel's territory of Isaachar, where king Saul went on the eve of his final battle with the Phillistines and came across "The Witch of Endor". It also the Elvish name for Middle-Earth in J.R.R. TolkienJ.R.R. Tolkien's Lord of the Rings.
It was originally intended for the Millennium Falcon to not make it out of the exploding Death Star. While this was eventually dropped, a fragment of the idea remains when Han says, "I just got a funny feeling, like I'm not gonna see her again."
One of the songs that the Ewoks sing sounds like: "Det luktar flingor här", which is Swedish for "It smells of cereal here." (In fact, that line's lyrics are supposedly, "G'noop dock fling oh ah.")
At the end, when Luke cremates Darth Vader, he starts the fire at big toe of his right foot. He also apparently walks around the pyre. Those details and the style of the pyre correspond to Hindu tradition.
The point-of-view shots for the speeder bike sequence were achieved by having a camera operator walk through the forest at normal speed with a camera filming at one frame per second. When the footage was played back at twenty four frames per second, it gave the appearance of flying through the forest at high speeds.