Revealing mistake: Once Victoria has drawn her bath, we see her get in, and then lean back into the water. However she is already wet on her chest and her hair is damp already. This is probably due to previous takes of the same scene.
Continuity mistake: At the beginning, when Seth picks up the barbell to beat Troy with, Troy is at the end of the locker room with the showers. As Pete and Clark show up, Troy is at the other end of the locker room.
Continuity mistake: When Amy is introduced, she is writing about two lines down from the top of the page in her journal. After Troy snatches it, the writing runs about halfway down the page. (00:00:35)
Continuity mistake: As Victoria is being drowned in the bathtub, she appears very deep in underwater shots and only a few inches down in overhead shots. (00:26:00)
Continuity mistake: When Jonathan is sitting down, before he tells Clark that he can't always be honest, in the shot from the other side of the table Jonathan is holding a book in his right hand as he is sitting down. When the shot switches to Clark's right, Jonathan is still starting to sit but now the book is in his left hand.
Answer: In the comics, Krypto is a dog from Krypton who was used as the passenger in a test launch by Jor-El, Superman's father, before he launched the actual rocket taking his infant son to Earth. Krypto's capsule was involved in a mishap, sending it out of Kryptonian orbit and eventually found its way to Earth where he linked up with the young Clark Kent. Like any native of Krypton, Krypto has superpowers on Earth. In Smallville, the dog is a standard Earth dog who has been experimentally injected with kryptonite, giving him super-strength for a limited period of time, who escapes and links up with Clark (who suggests the name Krypto, ostensibly because of the dog's cryptic origins). It doesn't take too long for the dog's strength to fade, and the Kents decide to keep him, although they ultimately name him Shelby, after a dog that Martha Kent had in childhood.
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