Continuity mistake: In the bunker, just after R2 gets shot, Han tries to hotwire the door. A second blast door closes, and you can see that it is very flat and cardboard looking. A few moments later, Leia gets shot, and as Han is tending to her, notice that the door is now massively armored and three-dimensional, completely different from the door seen earlier.
Visible crew/equipment: During the speederbike chase, there are several shots where the support arms holding up the fronts of the bikes are visible.
Continuity mistake: After Han is released from the carbonite, he falls to the ground, soiling his shirt. In the following shots, the amount of dirt changes continuously between shots. Later, when Han and Luke are brought before Jabba, his shirt is clean.
Continuity mistake: On the forest moon of Endor, when the stormtrooper punches Han, he falls and has a blaster in his hand but it disappears when he hits the ground. He can't have thrown it during the time he was falling, because he shot accidentally when he was near the ground. If he has thrown it, it should have been near him.
Revealing mistake: 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 mistake: When the little Ewok finds Leia, and she rises up, he points his spear at her and you can see that the front of his leather hood is over the spear's shaft. The shot changes to Leia, the back to the Ewok and now spear is over the hood, the shots change again and now the hood's front is crumbled up between the spear and the Ewok´s body.
Continuity mistake: Before the Emperor gives permission to fire the Death Star, in the scene at the bridge of the Star Destroyer, the blue rank insignia of Admiral Piett and another Imperial officer is coloured black. This is probably caused by bluescreen effects replacing everything blue with the colour of space. This can also be seen when a Rebel ship hits the Star Destroyer at the end of the film.
Revealing mistake: When Luke is in the Rancor pit, there is a Rodian in the crowd - some of his fingers are hanging from his hands. Cheap costume. He makes hand gestures like Mr. Burns - helps to find him.
Deliberate mistake: When Luke is to be executed, Jabba says, "Put him in", and there's a shot of the prisoner's skiff. The shot has been flipped, seen from the positions of Lando and the guards, as well as the railing of the skiff.
Continuity mistake: 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 mistake: After the Death Star explodes, Wicket the Ewok comes over to Han and Leia, and Leia puts her hand on his arm, and Han puts his hand on his shoulder. In the next close-up of Wicket, their hands are no longer there. This is best seen in the widescreen version.
Continuity mistake: When Leia frees Han from the carbonite, he falls on the ground and has dirt on his face. Some shots later, the dirt is gone.
Continuity mistake: On the forest moon of Endor, when Chewbacca finds the dead animal, it's attached on a little tree but when they are trapped in the net, the animal is still there, but the tree has disappeared.
Continuity mistake: As we follow Fett's flight after being hit by Han, we cut to a scene showing the front half of a skiff. Luke then kicks one of Jabba's henchman. He very clearly misses the man by a few inches, yet the man still tumbles to his doom nonetheless.
Revealing mistake: After the rebels have destroyed the radar on Endor, there's a shot of Lando and a Sullustean laughing, and after that, a shot of spaceships. One Y-Wing passes in front of an X-Wing, but the light of its engines disappears a little bit before.
Continuity mistake: When Han, Luke and Chewbacca are sentenced to death, there's a strange alien with a long tongue hanging from the ceiling, in the upper, left hand corner. In some shots, the creature is moving, in other shots, it is completely still and appears to be asleep or something.
Other mistake: Look at the shots of the windows in the Emperor's chamber on the Death Star. When they are seen from a distance, the window frames are out of focus, but the stars remain in clear focus.
Continuity mistake: In the scene on Endor where Luke and the Stormtrooper are duelling on the speeder bikes. The glove on Luke's damaged hand changes sides between the front and side on shots.
Revealing mistake: In one quick scene when Luke's hologram is talking to Jabba, the film has been reversed. The camera shows Jabba sucking on his 'bong' and then pans down to Salacious Crumb. However, during the Jabba shot, the air bubbles in the 'bong' are going down, as opposed to surfacing. Behind Jabba, you can see the smoke created is also going downward.
Continuity mistake: This is a 'Special Edition' error only. After the scene in Jabba's palace when R2D2 and C3P0 are assigned their 'duties' we see the audience chamber in their party, and Jabba holding his dancing girl's leash. When the first song ends, Jabba says 'Do that again' and his hands are empty. When next he's shown, the leash is back in his hands.
Answer: The Jedi are shown to have something of a blind spot in regards to matters of the heart. Note that when Luke confronts Obi-Wan over lying to him about his father's fate, Obi-Wan's response is haughty and defensive, and gives Luke nothing in terms of regret or apology. They're focused on their mission, not on how Luke feels. Why waste time, in their eyes, telling Luke about his mother? If they had their way, he wouldn't even know about his father. The prequels would make this more explicit, showing that the Jedi are conditioned from the beginning to let go of all "passions" because they could so easily be corrupted, and their inability to understand Anakin's emotions just contributes to his downfall.
TonyPH