Other: Widescreen version: When Han calls after Luke and Leia when they leave on the speeder bike, the head of the stormtrooper that attacks him can be seen in the lower right hand corner, as the actor is waiting for his cue. After Han calls after Luke and Leia, the stormtrooper suddenly pops up and attacks him.

Revealing: At the beginning of the ground battle on Endor, two stormtroopers are knocked to the ground by the Ewoks. In the following shot, one of the troopers has a big crack in the left shoulder of his armour. The crack was obviously not there in the previous shot.

Continuity: When Lando is dangling from a rope over the Saarlac pit, he keeps moving up and down the rope between shots.

Continuity: On Endor, when the stormtroopers come to take Luke away, the door of the lift is heard opening, the stormtroopers are heard walking, and then they appear behind Luke three seconds after the door opened. But in the next shot, we can see that Luke and Vader are too far away from the lift for the stormtroopers to reach them that quickly.

Deliberate "mistake": The shots of the prisoner skiff during the transport to the Sarlacc Pit are reversed. This can, for example, be seen as Chewie's bandolier is on the wrong side, and that Han's shirt is overlaying the wrong way.

Continuity: When Leia knocks out a scout trooper with a branch after being discovered on Endor, she is turning to the right. In the next shot, she has turned the other way.

Continuity: On Jabba's sail barge, Luke gets shot in his mechanical hand. This leaves a large burn mark on the back of the hand, but when he swings to the skiff on the rope with Leia, the burn is gone.

Continuity: During the transport to the Sarlacc Pit, in some shots, Chewbacca is standing on Han's right. In other shots, he is standing behind Luke and Han.

Continuity: When Jabba pulls Leia's chain in the sail barge, Bib Fortuna is standing on the right side of the screen, a few meters away. He then takes one step forward, but in the next shot he is suddenly standing behind Leia, as he's pushing her against Jabba. He was too far away from them in the previous shot to have reached them that quickly.

Continuity: In the beginning of Luke and Vader's lightsabre duel, and also in a few shots right after Luke knocks Vader down the stairs, Vader's cape alternates between being draped behind and over his left shoulder.

Continuity: In the first shot of Chewbacca when he is in Jabba's dungeon with Han, his bandoleer is on the wrong side.

Continuity: The stormtrooper that is chasing Leia on the forest moon of Endor has a symbol looking like IZ on his helmet. It keeps disappearing during the scene.

Revealing: When Luke and Darth Vader are fighing in the emperor's throne room, they pass in front of a great window. The stars are blurred and they shake.

Other: When Leia gets on the speeder bike, it starts before she pushes the button.

Revealing: During the lightsaber duel, Vader throws his at Luke. The catwalk behind Luke explodes, but if you watch in slow-motion there are two explosions: one some inches over where the lightsaber actually hits and one far on the left.

Revealing: When Leia takes a speeder to chase the stormtrooopers, there is an SFX box around it and it makes no shadow on the ground.

Continuity: In one scene of the battle of Endor, Chewbacca is accompanied by 2 Ewoks while pursuing one of the ATSTs. However soon after their first appearance, one of the Ewoks' costume looks completely different from the original one.

Continuity: Just before Luke chops off Darth Vader's hand in the battle at the end of the movie, you can see that the bar has already been cut(the line is visible) to give the illusion that Luke cut through the steel bar with his lightsabre as well as Vader's hand.

Revealing: In the wide-shot where Luke leaps from the prisoner skiff over to another skiff, you can see the stick used during the filming, which is much shorter than the regular one. The blade is not even glowing. (It is not just simply the hilt of the sabre, it's too long for that.).

Continuity: When Han and Leia kiss after the Death Star explodes, after Wicket shows up, Han's hand is on the back of Leia's head. In the next shot, his hand is on her arm, and Leia's thumb is touching his jaw, which it didn't do in the previous shot.