Continuity mistake: When Green Leader's starship crashes into the Star Destroyer, Admiral Piett begins to run away. As the shot ends, he is about one meter away from the window. In the next shot, he is several meters away from it. He couldn't have moved that quickly between shots. (01:54:20)
Continuity mistake: When Anakin Skywalker (Vader) dies, the path of a tear is visible under one of Luke's eyes. Two shots later, the tear path is dry. (01:55:45)
Continuity mistake: When Luke removes Vader's mask, Anakin's eyebrows have been removed in the 2004 DVD. However, a part of his left eyebrow can still be seen in some shots, and it even changes size a few times. (01:55:50)
Suggested correction: It's not part of his eyebrow. It's a shadow.
Continuity mistake: During the speeder chase scene, Leia jumps from her speeder and it blows up, the stormtrooper then hits a tree. The camera shows the tree as a hollow shaft, but when the stormtrooper smashes into it, suddenly it is solid. (01:58:15)
Continuity mistake: Widescreen version: After Leia tells Han that Luke is her brother, she kisses him, and then removes her hand from his neck twice. (01:59:20)
Continuity mistake: 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. (01:59:30)
Continuity mistake: Widescreen version: When Darth Vader dies, the chin part of his helmet is missing in the last shot. (02:01:30)
Continuity mistake: On the forest moon of Endor when Princess Leia first meets the Ewok, she takes her helmet off and is holding it in her hand (which frightens the Ewok) in the very next shot she is removing it again to show it to him.
Continuity mistake: When Vader is driven to his knees during the duel, his elbow is over the handrail, but when Luke cuts off his hand, Vader's wrist is lying over the handrail instead.
Continuity mistake: When Lando is hanging over the pit, he has gloves on, then he has no gloves, then they're back and so on.
Continuity mistake: When Wicket wakes up Leia in the woods, the hooded garment he is wearing changes length between shots.
Continuity mistake: Before Chewbacca and two Ewoks swing on a vine to the roof of one of the AT-ST walkers, in a shot of them running, Chewie's bandolier is on the wrong side.
Continuity mistake: In the sequence of the Emperor torturing Luke, there are several close-ups of Vader. Look at his helmet - it goes back and forth between being clean and being dusty.
Continuity mistake: The birthmark on Leia's back keeps changing sides during the 'Jabba' scenes. This seems to happen when Jabba's tail changes sides. I guess the model of him only went one way, so they flipped the negative.
Continuity mistake: 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.
Continuity mistake: 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 mistake: In the scene where Leia frees Han from the carbonite, there's a table on the right side of the room. The position and existence of the fruit and other objects lying on and around the table keep changing between shots.
Continuity mistake: 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 mistake: When they get ambushed in the shield generator complex, an imperial in black appears from the right of the screen in front of the ledge with the railing. Han throws the container in his hands at the imperial. If you notice, the imperial actually begins to jump over the railing before the box even hits him.
Continuity mistake: When Luke and Han are being executed on Tatooine, Han says his eyes are getting better but still bad. Then he looks directly at Luke and says "You're gonna die here." In the very next line of dialog, Han's head is turned a different way. It looks like it was a different shot.