A nameless member

Trivia: A special effects technician added a tennis shoe to the asteroid scene. It can be seen flying from the central-left side of the screen to the lower right. It's right at the beginning of the exterior shot after Han Solo announces that he's going for one of the larger ones, and Leia, C3PO, and Chewbacca voice their objections. (00:39:40)

Chosen answer: In the Special Edition, when Vader makes contact with Emperor Palpatine after bringing the ship out of the asteroid belt, It is Palpatine that informs Vader that Luke is the son of Anakin Skywalker, to which Vader replies, "How is that possible?"