Continuity mistake: In episode 3 of Season 1 we see Sam smashing the locker next to Carly's as she thinks it is hers. Gibby comes up to her and says that it's his locker and hers is the one on the right - which she promptly unlocks. However, in the next episode (ILike Jake) the start of the episode features a gag where Sam has traded lockers with Arthur Gradstein, to be next to Carly's locker as her locker is in between two sweaty aggressive football players, however in the previous episode she was seen unlocking the same locker that she apparently just traded with Arthur, after smashing Gibby's locker that is in the middle to pieces.
Continuity mistake: During Sam and Freddie's first interaction, Sam can be seen holding a coffee cup when she enters the room. For the first half of the conversation the cup is plain white, but as the camera returns to Sam, and she says, "You mean I can't play with the white balance on your super-dee duper-ee camcorder?" A green logo on the cup is plainly visible.
Revealing mistake: When the gang is "Messing with Lewbert" and they zoom in on his wart, you can easily see it is just makeup.
Continuity mistake: When Sam bangs on the locker with the hammer, the amount of damage on the metal repeatedly changes; it decreases, increases, decreases, and so on.
Revealing mistake: When Carly's in her dream and attempts to use the elevator, if you look really closely, she doesn't actually hit the button that lights up.
ILike Jake - S1-E4
Continuity mistake: When Sam walks in on Spencer wearing the plaster head, just after he points out the breathing and feeding tubes, there is plaster smeared all over the left tube that vanishes, reappears, then vanishes again in following shots.
ILike Jake - S1-E4
Continuity mistake: The locker that Sam has is introduced here, but in episode 3, she already has that locker.
Suggested correction: That's because the episodes were aired out of order, which isn't a mistake of the show. Episode 4, "ILike Jake", was the 2nd episode produced and episode 3, "IDream of Dance", was the 13th episode produced.
IWanna Stay with Spencer - S1-E5
Other mistake: The "Fan of Hammers" has all the hammers pointed the same way. But when the hammer goes into the wall, it goes in backwards. It is also there through all the rest of the shows and even in season two, where in "iKiss" it has a black handle. (00:02:35)
IWanna Stay with Spencer - S1-E5
Revealing mistake: When Spencer turns on his iPod when talking to his Grandpa, you can see that the headphones are not plugged into the iPod.
Suggested correction: It is plugged in, but the cord runs from Spencer's head under his shirt and meets the iPod near where Spencer's green short sleeve shirt meets his long sleeve white sleeve shirt. Only a very short bit of the cord appears from under Spencer's sleeve to the iPod strapped to his arm.
Continuity mistake: Nevel gets some tapenade on his face, but the amount isn't consistent. When he looks at Spencer you can see there is more on his face.
Continuity mistake: Spencer arrives at his destination with butter on his elbow but it disappears a few moments later.
Continuity mistake: Sam pushes Freddie into the "haunted" apartment. In the very next shot, from inside the apartment, Freddie is standing up. In the next shot, outside the apartment, Sam is pushing the cart with Freddie's equipment on it and Freddie's voice says something like, "Ow! Quit it, Sam!" as if he is still lying on the floor. In the next shot, back inside the apartment, Freddie is standing up again.
Continuity mistake: When Mrs. Benson walks into Carly's apartment holding the clothes she picked out for Freddie, the clothing repeatedly turns around in her arms and also when she places them on the counter.
Continuity mistake: Carly and Sam stick their heads in buckets of water to stay awake. Their heads and clothes are wet during the whole scene, but when the show comes back from commercial, their hair and clothes are completely dry.
Continuity mistake: During the attempted record-breaking webcast, when Spencer is seen explaining his sculpture on the studio's screen the red leaf blower falls backwards, but when he is seen live the blower has fallen forward.
Other mistake: When the military barge into Nevel's house, Uncle Roger puts the camera down and you can see it not moving whatsoever, but in the shot from the POV of the unmoving camera the shot is moving.
Other mistake: There is an A stuck to Carly's butt, but nothing touched Carly's butt when she got downstairs. (00:20:30)
IHeart Art - S1-E14
Continuity mistake: When Spencer is working and the dentist pushes back the tongue and his saliva sprays on Spencer, you can see that every time it switches back to Spencer, the wet stain on his shirt decreases in size.
Continuity mistake: Sam hires a personal chef, Sonia. When Carly, Sam and Freddie are sitting at the table and Spencer is talking to them, Sonia takes the blueberry muffins out of the oven and puts her oven mitts down. Next, Spencer starts walking away. Then Sonia is putting down her oven mitts again. There is no way she could pick up and put down her oven mitts that fast. (00:13:15)
Continuity mistake: When they have the first meeting with the techfoot people, Sam is eating a sandwich. Every time the shot goes back to her and Carly, the amount of the sandwich she has eaten changes. Sometimes there is a bite taken, and then the next time there isn't a bite taken out of it.
