Continuity mistake: While talking about what to name the dog there are several shots of the dog and the metal chain is gone. Then, right at the end of the scene, as the dog puts his paw over his nose, the chain is back.
Continuity mistake: When checking out the armored car robbery, Clark tells Lois to turn left. We then go to on out of car shot where the big red letters of the GMC that Lois is driving are visible. When the 4x4 skids to halt shot its GMC logo is covered in black tape.
Plot hole: When Kara realizes that Agent Loder is listening in on the conversation, she runs out to his car to stop him. She has Clark's ability of super speed which she uses to get over to Loder's car. As she runs she ends up running through a wooden fence and you can see, through the motion blur of her movement, she neither jumps over the fence or goes around it yet the fence never gets damaged from her running through it.
Continuity mistake: As Perry and Clark talk for the last time in this episode the sunlight in the scene changes between shots. As they step out of the truck the sun is behind them as they walk towards the road where the bus is going to stop. When Perry turns to face Clark the sunlight, which should now be hitting Perry right in the face, is instead casting a bright orange light on the back of Perry's head.
Continuity mistake: While Clark and Pete are playing basketball, in the wide shot Clark and Pete, and the side of the barn where the hoop is, are in full sunlight. When the shot zooms in Clark and the barn are now in shadow.
Revealing mistake: Clark tries to stop the three guys who are inhaling refined kryptonite. As Clark gets tossed through a window, you can see the explosion of a small charge in the bottom left of the widow. Highly noticeable since Clark hits nowhere near where this charge goes off.
Exodus (2) - S2-E23
Continuity mistake: As Jor-El is first burning the mark on Clark's chest the mark moves to the upper right part of his chest. In the next shot, closer in on Clark, you can see the same area again but now there is no mark where there was one before.
Revealing mistake: When we see Ian split, his two selves are supposed to be looking directly at each other but they're really both looking slightly to the right. It's hard to focus when there's really nothing there. (00:15:45)
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: In the closeup when Zoe is introduced, the button just above her apron is buttoned. In the next shot of her walking through the cafe, it is unbuttoned. (00:07:35)
Audio problem: When Whitney is tearing up the bathroom, he throws the door and we don't hear it land. I saw this on the DVD, so it was not a transmission problem.
Continuity mistake: The first time Seth tries levitating a spoon, he floats it a few inches towards him. When Lana enters and breaks his concentration, it falls back down almost exactly where it had been.
Suggested correction: Even though it's impossible to tell how much the spoon moves towards him, the spoon was in the middle of the jello, then lands in front of the jello, a few inches away from the middle.
Continuity mistake: While Clark is chained up, Chloe uses her fingernails to dig into Clark's chest. You can see that since Clark has had his powers taken away her fingernails draw blood. In the shot of Clark screaming in pain you should see where the blood came from the scratches but there is no blood visible.
Revealing mistake: At the command center outside Martha is watching a monitor with the hostages on it and she asks "Where's Clark?". The next shot is one of Clark running down a hallway, inside the plant, using his super-speed. As he is running the red lights along the ceiling are revolving faster than they normally do and return to normal once Clark stops using super-speed.
Continuity mistake: Chloe makes an $80 bet with Mxyzptlk at the beginning of the episode. When he pays her in the Torch office, he peels off seven 20-dollar bills for a total of $140 instead of the $160 it should be. (00:09:00)
Plot hole: Justin's power is telekinesis, which he uses to attack the doctor at the beginning of the episode. He shows that he is targeting the doctor's hands by blacking them out on the drawing, but he has absolutely no way to see what is happening in the elevator to know the exact moment when to drop it and cut them off. (00:03:30)
Audio problem: When Jimmy is in the 1940s Talon we can hear the sound of a saxophone in the number before Lois arrives. Nevertheless, as we can see on the stage, there are only three instrument: a drum, a piano, and a bass. (00:52:00)
Continuity mistake: When Gabriel shows up to help Chloe the shadow of his bike shows it to be about noon. According to the show it should only be between 6:30 to 7:30am.
