Continuity: In the truck right before the parade passes them by, Jonathan Kent kisses his wife. Cut to a different angle but this time his left hand is on her cheek. It wasn't there in the prior angle.

Continuity: After the meteor shower, the bit of hair that Mr. Luthor finds in the cornfield changes in his hands from stretched straight to curled.

Visible crew/equipment: When Lex spins up to Luthor Corp in his car, as the camera pans over the car to follow him, the cameraman is reflected in the window as he pans over.

Continuity: When Lex is about to hit Clark with his car, Clark alternates between facing the car and facing the bridge.

Continuity: The Porsche that strikes Clark has no sign of impact when it goes over the side of the bridge.

Continuity: The hole in the guard rail changes size and shape between the shot of Lex driving off it and another looking up at it from below.

Visible crew/equipment: When Clark finds Lex in the Luthor mansion, they walk down the hall and into a new room. As they enter, as Lex is saying "So, hows the new ride?" if you look in the bottom left of the screen you can see a white tape marker on the floor, where Lex will walk over to subsequently.

Continuity: Closeups and wide shots on the Wall of Weird show different things next to each other. Watch the objects surrounding the finger article and the Wall of Fire article in the wide shot on Chloe, then look again at the closeups.

Continuity: Clark's hands on the hood of Jeremy's truck shift in different shots from spread wide to in front of him and close together.

Continuity: Despite the fact that Clark and Jonathan are looking in the rafters above them for Greg, their flashlights stay relatively level.

Continuity: While researching Greg with Chloe, Clark changes from one hand on the computer mouse to arms crossed and back.

Continuity: After Greg hits Clark with the pipe in the foundry, Clark's hands are very dirty. In the closeup on Clark's hand immediately after he lands, the hand is clean to show the effects of the Kryptonite.

Continuity: Near the beginning, Clark, Chloe, and Pete walk past Lana and Whitney. In the following exchange between Lana and Whitney, two cheerleaders suddenly appear behind them. They're gone again as Lana walks away.

Continuity: During Clark and Pete's exchange after the coach invites Clark onto the team, Pete's hand zips from at his side to raised to his shoulder in an angle change.

Continuity: While Clark and Jonathan are talking about Clark being on the football team, Jonathan puts his hands on Clark's shoulders. Between shots, the position of Jonathan's hands on Clark's shoulders repeatedly changes.

Continuity: As Lex is chalking his pool stick while talking to Dominic about cutting 20% of the workforce at the LutherCorp Smallville plant, there is a red snooker ball on the wall rack missing from the second row. When Lex walks over to the other end of the pool table, the camera shot changes back to Dominic, now there is a ball missing from the top row, which was not missing before.

Continuity: When "Lex" threatens the bank manager, he points the gun at his face, but the next shot on the manager shows the gun at his throat.

Continuity: Tina's grip on Lana's necklace changes as she stands over Lana's body.

Continuity: At the party, Chloe's hands jump from extended to the fire to clutched in front of her as Sean approaches.

Plot hole: Chloe writes her phone number on Sean's hand. It disappears when we see him struggling against the ice of the lake, then reappears in the scene where he is calling old girlfriends. And how exactly would pen ink survive several hours submerged in water and then another eight hours of normal activity without becoming blurred?