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.
Revealing mistake: In many of the scenes taking place in outer space, if you look closely you can see polygon borders surrounding space vehicles (X-Wings, Star Destroyers, and even the Death Star) indicating the objects being superimposed into the outer space background. [This mistake may only apply to the Blu Ray version.]
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.
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.
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.
Revealing mistake: When the Tydirium shuttle is flying toward the Imperial spaceships, there's a frontal shot of it and a strange thing appears near the shuttle for a few frames. It's not the kind of marks that appears on an old film, or a special effects box. It's like a problem with the matte painting.
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.
Revealing mistake: When Luke jumps from Jabba's prisoner's skiff over to another skiff, if you watch Lando hanging underneath the prisoner's skiff, you can easily see that he is a matte painting in this shot, because he doesn't move at all (visible on widescreen).
Revealing mistake: In an overhead shot of Darth Vader throwing the Emperor to his death down the Death Star reactor, you can see that it is a dummy in the Emperor's costume and not Ian McDiarmid.
Revealing mistake: When Admiral Piett says "I have orders from the emperor myself," the right edge of the matte can be seen on the right. Theater version only. This has been corrected on the 1997 special edition release.
Revealing mistake: When Han Solo lifts his hands up and he spots the Walker that Chewie and two Ewoks are in, one of his hands is transparent, and the trees are visible through his hand.
Suggested correction: They are not transparent. What you are seeing is glare from the bright sky in the background. You can see other ghost images matching the bright white portions of the shot. Besides, there would be no reason for it to be transparent. It appears to be a fully on-location shot with no compositing.
Completely not true. You can see the trees through his hands; therefore, they are transparent.
Look closer. There is a white ghost image that matches the bright white sky, offset to the left and rotated slightly. And why would the hand be transparent? This is not a composite shot.
While it's not a composite shot, that would mean that the shot of the imperial officer yelling "freeze" in the original version wouldn't have been transparent. But it's not a composite shot too, therefore, they are transparent.
This comment makes no sense. What Imperial officer are you referring to and what does it have to do with this shot? And if this isn't a composite shot, which you seem to be admitting, why would the hand be transparent? Do you think Harrison Ford's hand actually became see-through?
