Continuity mistake: In the Emperor's throne room, the existence and arrangement of several of the canisters on each side of the lift/elevator changes between shots, several times.
Continuity mistake: When the droids are hiding behind a tree before R2-D2 shoots off to help Han and Leia, the background changes twice. (01:35:45)
Continuity mistake: During the final battle, when some moving ships explode, the fire and the debris suddenly stay stationary.
Continuity mistake: When Leia frees Han from the carbonite, the light shining on the walls and floor keeps changing. For example, watch the light on the right side of the carbonite block.
Continuity mistake: During the battle against the Death Star, right before the Emperor gives permission to fire the Death Star, Wedge says, "Red Three, Red Two, pull in." Another pilot answers, "Got it", but it is neither Red Two nor Three, but Green Leader. (01:36:25)
Revealing mistake: If you watch closely (or play it in slow motion) when the scout trooper punches Han, you can see that the troopers hand never actually comes into contact with is face. (00:55:45)
Continuity mistake: When Chewbacca gives Han a hug in his prison cell in Jabba's palace, he initially puts one arm around him, but as the shot changes both Chewbacca's arms are around Han.
Continuity mistake: When Luke throws a scout trooper off of a speeder bike on Endor, the trooper mysteriously hits a tree back first, but he should have hit the tree face-first. He only rotated across his horizontal axis.
Continuity mistake: In the fight scenes on the skiffs with Jabba the Hutt's men, the skiff that Han and Chewie are on is hit with a laser blast and Han falls over the edge feet first, yet in the following scene he is hanging upside down with Chewie holding his feet.
Revealing mistake: In the shot where Vader throws the Emperor into the pit, the Emperor is obviously a puppet, because he doesn't move at all. (01:52:15)
Continuity mistake: When the Rancour grabs Luke, as the shot ends, Luke is holding the bone with two hands. In the next shot, he's holding it with only one hand. (00:25:20)
Continuity mistake: When Yoda is lying in bed, the creases in the blanket over him keep changing between shots.
Continuity mistake: When R2-D2 is tied up in the Ewok village, the rope that binds him keeps changing position.
Continuity mistake: Just before the Emperor's ship lands on the Death Star, a formation of four TIE fighters disappears from the center right of the frame. This happens seconds before the in-hangar scene with Vader greeting the Emperor. This is visible on VHS.
Continuity mistake: After Lando is shot off the transport vehicle when Han is trying to save him, look for Lando to actually walk down the sand in the bottom of the screen. The very next scene, he is hanging on the rope.
Continuity mistake: When Lando orders half the fighters to break off and return to the surface, an A-Wing and an X-Wing break off to the right. When Green Leader acknowledges, the same A-Wing and X-Wing break off to the right again.
Continuity mistake: Han says "You stay here, we'll take care of this." Leia turns and she can be seen with a very large smile, even showing her teeth. When the camera instantly cuts to a different angle of the scene, Leia is no longer smiling, displaying a deadpan look.
Continuity mistake: When R2-D2 cut the net, only Han, Luke and Chewbacca fall from it. Maybe C3P0 would have hold for a moment because his leg was stuck in the net, but R2 was right over the hole.
Revealing mistake: When Luke is fighting on a skiff, he kicks one of Jabba's men in the head, causing him to fall off. Luke's foot doesn't make any contact with the person. (00:33:48)
Revealing mistake: When Luke somersaults over up to a platform above him when fighting Vader, If you look at the hair of Luke jumping, you will notice that the stunt double's hair is much more blonde than Mark Hamill's.
Answer: Yoda. When he was departing for Cloud City to save his friends in the previous film, he promised Yoda that he would return to Dagobah to complete his training.
Phaneron
OK. But I thought he was talking about the holeish thing in his hand since he covered it up when he said it. I must have misunderstood it.
The hole in Luke's robotic hand reminds him that he got that robotic hand in the first place because he lost his duel with Darth Vader at Cloud City - a confrontation Yoda warned him he was not ready for.
TonyPH