Visible crew/equipment: After the heroes have escaped the trash compactor and we see them arguing outside of it. As they walk away and Han says "No reward is worth this," the shadow of the camera covers his whole face.

Revealing: When Darth Vader releases the admiral and he slumps on the desk, the force of the impact makes the whole set wobble.

Continuity: In the scene where Alderaan is destroyed, the "buns" on each side of Leia's head are positioned higher up than in the previous scene she was, so that her earlobes are visible. When Luke and Han rescue her, her hair is back to normal. She's held prisoner in a cell, so it's not likely that she could or would have changed her hairstyle.

Continuity: When Han and Luke (disguised as stormtroopers), and the "captured" Chewbacca are waiting for a lift in the Death Star, an officer wearing a grey shirt walks by, which changes to an officer wearing a black shirt in the next shot. Widescreen version only.

Continuity: When Luke and the others are trapped in the detention corridor, there are some black marks on his stormtrooper armour, on his chest, which weren't there before. These marks change slightly between shots, and in the wideshots they are missing.

Deliberate "mistake": Just after Obi Wan kills the two aliens in the Cantina, there are two quick "reaction shots" from both ends of the bar. If you are quick, you can see that they are both shots of the same end of the bar with one shot flipped. You can see the same human with the light blue/dark blue suit on in both shots.

Continuity: During the binary sunset, the two suns are closer together in the close-up than in the wide shot. There is also a cloud and a mountain in front of the lower of the suns, which weren't there in the wide shot.

Revealing: After the Death star, the stick that is used to move the Millennium Falcon is visible when the first TIE fighter attacks it. Submitted by Dr Wilson

Revealing: In the Death Star, when Han is screaming and chasing some stormtroopers and enters a room full of them, some are cardboard. Submitted by Dr Wilson

Revealing: Original theatrical version: At the very end when Han and Luke first step into the awards ceremony, there's a long shot behind the pair and the first few rows of soldiers on each side of the hall (closest to the camera) are cardboard paintings.

Continuity: After Obi-wan saves Luke from the sand people, there is a shot of him sitting on a rock and his white robe is visible, then there is a close-up and he says "I don't seem to remember owning a droid" and his robe is not visible. (Time)

Continuity: Widescreen version: In the trash compactor, in the scene where Han says, "One thing's for sure, we're all going to be a lot thinner," the pole used to stop the compactor is leaning on the wall in different angles between the wide shot and the close-ups.

Deliberate "mistake": As noted in another mistake, Red Leader's helmet microphone changes sides before he crashes. Because some shots during the attack on the Death Star are flipped, this also happens to Rebel pilots earlier in the battle: Red Leader when he says, "All wings, report in", Wedge after a shot of Leia and C-3PO monitoring the battle, Luke when Red Leader says, "There's a lot of fire coming from the right side of that deflection tower" and when Luke says, "I'm hit, but not bad" and finally Red Leader after Gold Leader is killed.

Revealing: When Luke and Leia are trying to escape the Death Star and they are stopped in front of the canyon, the stormtroopers shoots on the door, but you can see the pyrotechnic charges and the explosions are not where the laser touches the door. Submitted by Dr Wilson

Continuity: When Han, Luke and Leia are trapped in the corridor in the detention block, a loose piece of hair on Leia's forehead keeps disappearing and reappearing between shots.

Audio problem: When the Millennium Falcon is attacked after the group escape from the Death Star, there is a TIE fighter which makes an X-Wing sound. Submitted by Dr Wilson

Continuity: When Aunt Beru speaks to Luke about buying droids, there are many shrubs besides Luke. In the next shot, they are gone. Submitted by Dr Wilson

Revealing: When they power-up the Death Star, the control panel is a Grass Valley switcher, production equipment which is still prevalent in television stations everywhere.

Audio problem: When Vader and Tarkin learn that Leia has lied about the location of the Rebel base, we hear Darth say "I told you she would never consciously betray the rebellion." There is a pause and Vader continues to move. An obvious dubbing error.

Continuity: When Vader is strangling the Rebel aboard the blockade runner, the Rebel's hands keep changing position between shots, as he tries in vain to loosen Vader's grip.