Corrected entry: In this episode Clark keeps having dreams of this girl who moved in Lana's old house, and is in a coma. In one of the dream sequences Clark says he doesn't have powers in the dreams. Yet in a previous dream he's with Lex at his mansion, and Lex takes a Japanese Katana and attacks Clark with it, but Clark blocks the sword with his arm and the sword blade shatters. If he doesn't have any powers in the dreams then shouldn't he have been hurt?
Corrected entry: When Lana is in jail, Clark tells her "Sheriff Adams knows you didn't steal the car and Lex has a lawyer working on the other charges." The police got involved after Lex called them because she stole the till from the Talon. Since Lex is the owner of the Talon, wouldn't it be a lot simpler for Lex to just drop the charges rather than have a lawyer "work on" them? (00:28:30)
Corrected entry: At the end of the episode, Lionel Luther pulls the top of the gun back on his gun to chamber a bullet. But he accidentally has his finger squeezing the trigger, causing the gun to slide into place more quickly than intended. I'm not a gun expert, but I think if there was a bullet in the chamber at the time, it would have been fired.
Corrected entry: Tina Greer disguised as Whitney walks down the hallway dressed in marine corps dress blues. His rank was a private first class, yet he had a blood stripe going down his pant legs. You do not receive the blood stripe until you reach corporal. Also the medals were wrong and some missing (i.e. combat action). The marine that comes to the house later and is killed by Tina Greer, had medals that were wrong as well.
Corrected entry: Seth is using a cream made of green (i.e., kryptonite) roses to make himself invisible. At the beginning of the episode, Clark is in the locker room and feels ill from the kryptonite rose cream that Seth is wearing as he beats up the kid who picked on Amy. For the rest of the episode Clark does not feel the effects even though Seth is close enough to him at least two other times in the show. Once after Seth trashes Victoria's room and runs past Lex and Clark and again when Seth tries to drown Victoria in the tub.
Corrected entry: Jor-El tells Clark that he has to return to the Fortress by sundown or face the consequences. Later, Lex tells Chloe that they're in the Yukon, implying that the Fortress of Solitude is in the Arctic. Since the events of this episode take place in the summer, Clark should have had plenty of time to help out in Smallville - the Arctic enjoys permanent daylight during the summer.
Corrected entry: When the bad guy shoots at Clark with the kryptonite bullet, he is facing the other way, then hears the shot, turns around and tries to catch the bullet. This couldn't have happened because a bullet from that kind of rifle is faster than the speed of sound. So the bullet would have hit him in the back before the sound could reach his ears.
Corrected entry: While Clark is inside the semi-truck being delivered to Morgan Edge and Lionel Luthor he manages to remove the kryponite apparently duct taped to his chest. This cannot be possible since he even a small piece of kryptonite (Lana's necklace) was enough for him to trip and fall from several feet away! Imagine a larger chunk like the one they strapped to his chest. He should have been severely weakened by it and the radiation should go through anything in that truck besides lead and the tape used to secure the rock on Clark's chest is not made of lead. His ability to not only have the strength to rip the taped rock off his chest but to then launch it to the far side of the truck should not be possible in view of the nearly immobilizing effects kryptonite has on Clark.
Corrected entry: Clark and Alicia are in the basement of the school, as part of the plan to trick Alicia, and, as they go to leave, Alicia picks up her bag with Clark right next to her. A few minutes later we find out that Alicia has a kryptonite rock in her bag. She takes it out of her bag to get away from Clark. Clark felt no effects from the rock before that even though he was in such close proximity, and surely a bag would not be enough to protect his from feeling the effects.
Corrected entry: Chrissy is the leader of Spirit Week and is trying to organise it. We see her kiss her boyfriend Troy, and suck the life out of him a few days before Spirit Week. However, Chloe pulls up the file on Troy, and it says his date of death is June 20, 2002. This is highly unlikely, as Spirit Week is put on in the days leading up to Homecoming, and Homecoming is usually in late September or October.
Corrected entry: When the students become wax their eyes move indicating that they are aware of their surroundings. However, that would mean the Chloe and Lana would have to be unconscious when they were turned into wax and taken from the school, to the fake school, without knowing what had happened.
Corrected entry: Clark is supposed to hide his powers from everyone. When the other swimmer in the final race starts to drown Clark uses his super speed to get him off of the bottom of the pool. Everyone who was in the pool area had their eyes on the drowning kid so somebody should have seen Clark just appear at his side.
Corrected entry: After Clark fails to prevent the death of Lana he is emotionally devastated and in a highly distraught state wanting only to be close to her as Jonathan pulls Clark away. Given Clark's emotional state and superior strength he would have been able to easily resist this action.