Continuity mistake: When Vader attempts to turn Luke to the dark side, he says, "With our combined strength, we can end this destructive conflict and bring order to the galaxy." As the second shot begins, Luke is standing much closer to the structure he's holding onto, than in the previous shot.
Continuity mistake: Widescreen version: After Vader chokes Captain Needa, he talks to Admiral Piett. The distance between Piett and the officer next to him differs between shots, depending on the camera angle.
Continuity mistake: When Han and Leia are bickering in the corridor on Hoth, Han says, " Well, the bounty hunter we ran into on Ord Mantell changed my mind." In the next shot, behind them, there's a man walking past them that wasn't there in the previous shot.
Continuity mistake: After R2-D2 opens the door to the landing platform during the escape from Cloud City, the droid exits through the door. Some shots later, he is back inside.
Revealing mistake: During the escape from Cloud City, watch as C-3PO's head strikes a lamp on the hull of the Millennium Falcon. It bends out of shape.
Continuity mistake: Just before Leia gives the order to evacuate and leaves the control room on Hoth, C3PO can be seen in the background with his hands over his head. The shot changes to a closeup of him, and his hands are now down at his waist.
Continuity mistake: In the beginning of the scene where Luke meets Yoda, in the shots facing Yoda, his hands and walking stick are positioned in front of his face or shoulder. In the shots from behind him, they are positioned in front of his chest.
Continuity mistake: When Luke first meets Vader in Cloud City, in the shot from behind him after he walks up the stairs, his arms are positioned differently from the previous shot.
Continuity mistake: When Yoda levitates Luke's X-wing, Luke comes over to watch, and his jacket is open. Two shots later, his jacket is closed.
Visible crew/equipment: When the Wampa (ice creature) kills Luke's Tauntaun, the end of the "glove" used as the Wampa's arm can be seen in the bottom left corner, as well as the arm of the crew member wearing it. Widescreen version only.
Continuity mistake: After Luke is sucked out the window, he grabs hold of two bars in a railing, and his right hand is above the left one. As he hoists himself up in the next shot, it is the other way round: his left hand is above the right hand.
Continuity mistake: When Yoda and R2-D2 are engaged in a tug-of-war over the little flashlight, Yoda hits him several times with his walking stick. When Artoo lets go, the stick is pointing upwards as Yoda hits him one last time, but in the next shot, Yoda is using it as a walking stick again and it is pointing downwards.
Continuity mistake: During the lightsabre duel, Vader hooks Luke's lightsabre out of his hand. When Luke summons it back to his hand, it is not lying in the same place as it landed. This can be seen from the lines on the floor.
Continuity mistake: When Vader is seen in Cloud City, Lando says, "I had no choice, they arrived right before you did" and two of the stormtroopers on the lowest step are standing about a metre apart. In the following close-up of Lando, they are standing so close together that their ankles are touching. This can only be seen in the widescreen version.
Continuity mistake: When Han and Leia kiss in the Millennium Falcon, Leia's arms are around Han's head in the wideshot, but not in the close-up.
Other mistake: When the Millennium Falcon escapes Hoth and is pursued by the Star Destroyers, frantic movements cause them to collide. Watch the interior shot of the Star Destroyer as everybody is thrown around. Near the bottom of the screen one of the computer consoles comes away from the wall and is hurridly pushed back into place by a controller!