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. See more...
During the trash compactor scene, Mark Hamill (Luke Skywalker) held his breath so long that he broke a blood vessel in his face. That's why many of the shots show only one side of his face. See more...
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The entry you are changing the wording of is:
|Original entry||When the Falcon is in the Death Star hangar, a scanning crew is sent aboard to find passengers, one of the stormtroopers walks straight past the camera and its shadow is visible on his leg.|