Continuity: When Clark and Lex are searching for Clark's dad, right after Clark gets mad at Lex and leaves it shows a head shot of Lex with the bandage over his left eye. In the beginning of the show he was injured over his right eye. (Time)

Audio problem: When Lex talks to Clark, Clark clicks his flashlight on, and you hear the click signifying he has turned it on. But in the next shot, the flashlight is now off, without another click sound heard to signify that the flashlight was turned off.

Continuity: When Clark, Pete and Chloe were looking for Clark's father in the woods, Pete says: 'the twister must have dropped it here' and we see Chloe holding the map in her right hand. Cut to a different angle (as Clark runs towards the screen) and in the background we see Chloe holding the map with her left hand instead.

Continuity: When Clark, Pete and Chloe were searching for Clark's father in the woods, they stumble upon a motor home dropped by the tornado. Chloe then picks up a Nixon's camera and looks at it. Cut to Nixon and Jonathan Kent then back to a wide shot as we see Chloe throwing the camera down onto the ground. Clark then uses his X-ray vision once again. Cut back to a wider angle (as they walk away) yet we see Chloe throw down the camera once again.

Continuity: When Martha Kent and Lana were talking about the meteor shower in the Talon Relief Center they sit down on the stairs. Lana puts both her hands on her knees. But in the next shot now her arms are outstretched in front of her, and now it's her elbows which are on her knees.

Plot hole: When Nixon and Jonathan are trapped in the crypt after the landslide, Nixon says he can't breathe, and Jonathan says this is because the landslide cut off the air supply. However, we can see beams of sunlight shining in. So, unless the ceiling of the crypt is made of airtight glass, that landslide didn't cut off the entire air supply.

Continuity: When Clark brings Lana to the hospital, a doctor attends to her and checks her vitals. In a close up we see the doctors right hand on Lana's neck checking her pulse and her left hand is no where in sight. Cut to a wider angle (as Clark runs away) but now the doctor is holding a flashlight in her right hand and her left hand is on Lana's forehead.

Continuity: At the beginning of the scene where Clark discusses Desiree with his parents, his hand shift from brushing over his glass to gripped around it. (Time)

Continuity: When Jonathan goes to talk to Desiree, we see her getting out of the swimming pool. However her hair is just damp when it should have been completely wet and dripping all over the place considering the length of her hair.

Continuity: After Lex confronts Desiree about changing her name, Lex says 'we really need to discuss this' Desiree then kisses Lex and they both tilt their heads to their left. Cut to a different angle and they are both tilting her heads to the right.

Continuity: When Jonathan goes to talk to Desiree, Jonathan throws Desiree a bathrobe. She then proceeds to put it on and lifts her right hand over her head as she does so. Cut to a different angle and now she is raising her right hand over her head once again.

Continuity: When Desiree walks into Clark's barn to work on their 'student-teacher relations', she holds her hair up with her right hand as she complains about the heat. She then lets her hair down and fixes it. Cut to a different angle and she is letting her hair down once again.

Continuity: When Clark decides to stay home from school because he cannot control his heat vision, his father decides to have a talk with him. Jonathan pulls his son to face him and them places both his hands on Clark's shoulders. Cut to a different angle as Jonathan says: 'Clark, look at me…' but now we see his left hand on Clark's neck. Cut back to the previous angle and his hands are on Clark's shoulders again.

Revealing: In the sheriff's office, the door to the jail area has no lock plate on the wall.

Continuity: When Lana was making a video to send to Whitney, we see her interviewing Clark. We first see Clark through the camera's view finder. Lana then drops the camera (pointing it down) such that we see Clark's feet. Cut to a different angle but now Lana's is pointing the camera at Clark's chest level.

Revealing: In the scene in which Johnathan shoots Lex, you can see he is gently lowering and raising the barrel of the gun whilst shooting, even though there is a 'bullet-time' effect in progress. Maybe the sequence is shot in real-time, with the actors standing still and the 'bullet' added afterwards? Furthermore, would Lex really move that quickly in relation to the speed of the bullet?

Continuity: In Jail, when the sheriff tells Chloe and Lana that visiting time is over, we see Clark holding the bars with his left hand as he tells the girls that his dad went to see Desiree. Cut to a different angle (from inside the jail cell) but now Clark is no longer holding onto the bars and only holds them a few seconds later.

Continuity: Pete arrives when Lana was interviewing Clark for a video that she would send to Whitney. Lana then asks Pete: 'want to give it a shot?' We then see Lana holding the view finder of the camera with her left thumb and index finger while the rest of her fingers in outstretched. Cut to a different angle (as we see Pete) but now the rest of her fingers are no longer outstretched.

Continuity: There are several close up shots of the syringe that Dr. Hamilton is using to threaten Pete with and you can see that it is made of plastic. Clark uses his heat vision to overheat the syringe causing it to burst but the sound the syringe makes when it bursts is that of a glass syringe and not the plastic one he was actually using.

Audio problem: After they get the spaceship into Pete's shed, Pete wants to go tell Chloe. Clark insists that he doesn't and Pete says "To her, this thing is the Holy Grail.". The shot zooms in and Pete's mouth shows him saying "Holy Grail" again even though he already said it and you don't hear the words.