Corrected entry: Not a mistake, just an obvious 'fix' to the film: When Threepio is searching the Death-Star's database for the location to the controls to the tractor beam, one of his lines is a 'looped'(dubbed) bit of dialogue intended to cover some expository explanations. The line is: "The tractor beam is hooked into the main reactor in seven places. Deactivating any one of those locations will permit the ship to leave." The 'quality' of the sound is markedly different from all of his other lines in the same scene, and his entire bit of dialogue is covered showing reaction shots and insert shots. Probably took the place of a long, needless scene.
Corrected entry: As Han jumps through the blast door, he fires his gun one last time as seen by a puff of white smoke but there is no laser blast from it.
Corrected entry: When Han fires his blaster at the hatch of the trash compactor in an attempt to open it, the blast creates burn marks on the left side of the hatch. If you watch it in slow motion, the burn marks are there before the laserbolt hits the hatch. Then, when the laserbolt ricochets around the room, and in the rest of the scene, the burn marks disappear, reappear and change shape and position.
Corrected entry: If you look carefully during the prison escape you can see a few pieces of brass shell casings falling from the "blaster" rifles. Depending on how well your tape heads work in your VCR, you may be able to hit the pause/slow button and see the breach open on Han's gun as well, but if it hasn't been cleaned the sides of the guns are too blurred to see the bolt coming back.
Corrected entry: You'll have to use frame by frame on this one, and jog it back and forth to see it. When Luke and Han are first arguing about whether or not the Force exists, Luke turns off his light saber. In the frame just before he turns off his light saber, his hands are in very different positions from the frame after he turns it off. Also, an item on the table to his right disappears, and the little sphere that's been firing at him rotates ever so slightly.
Corrected entry: Special Edition DVD. When Luke gets pulled over by stormtroopers in Mos Eisley, ILM has added a small hovering droid behind one of the stormtroopers who is interrogating Luke. However, there is no way that droid could cast a shadow on a part of the wall facing the street, considering that the sun is shining behind the stormtrooper and right into Obi-Wan's face. (00:41:50)
Corrected entry: After Luke, Han and the others make it into the communications center on the Death Star, R2-D2 says he found the princess. Luke immediately says she's the one in the message, and have to rescue her. When Luke saw the holographic message on Tatooine, C-3PO only said she was a passenger of importance. Never does he say she's the princess.