Continuity mistake: When the video of Kimmy plays on the school announcements, and she talks about Duncan being hung up on Veronica, there is a cut to Duncan reacting with raised eyebrows in the foreground, while Veronica can be seen in the background with a passive expression. Then it cuts to a close-up of Veronica having a visible reaction with her whole face falling. But since Veronica and Duncan were reacting to the same thing, Veronica's reaction should have been visible in the first shot as well.
Continuity mistake: In episode 1-12: "Clash of the Tritons," Veronica is in her car talking with Rick. You can tell there is no passenger seat (most likely to make room for the camera).
The Quick and the Wed - S2-E15
Audio problem: When Kendal is at the prison talking to Aaron, she says, "Impressive handle," but you can see her reflection in the glass and her mouth isn't moving.
Visible crew/equipment: Toward the end of the episode you can see a guy with a camera reflected in the side of a silver car.
Continuity mistake: Deputy Leo is at the police station when a woman reports her daughter is missing, but moments later when Keith tracks Veronica to a storage/warehouse, Leo is playing with his band and doesn't seem to know what is going on and Keith has to tell him that a girl is kidnapped.
Continuity mistake: In the last episode of Season 2, Veronica's mum puts three pancakes on her plate but when the camera turns back there's only one.
Cheatty Cheatty Bang Bang - S2-E3
Factual error: They are watching the BBC mini series of Pride and Prejudice and you can hear ending music, but that music is not played at all in the mini series.
Continuity mistake: Episode 1-13, "Lord of the Bling": when Bone Hamilton shows up at the detective agency to talk to Keith, Veronica holds her hand on the couch arm rest, but in the next shot, her arm is sitting on the notebook in her lap. (00:02:40)
Continuity mistake: In episode 1-12: "Clash of the Tritons," in the scene where Veronica is in her trunk, as the camera angle is on the trunk of Veronica's car, the shot right before Wallace lets her out, you can see the reflection on the trunk of Percy Daggs, III. However, the next shot is of Wallace walking up to the car.
Credit Where Credit's Due - S1-E2
Continuity mistake: During the diner scene with Keith, Veronica and Lamb, Lamb leaves and Veronica starts to go next. As Veronica starts to leave, still sitting in the booth, she puts on her hat (right after she says to Lamb "smell ya later"). The camera angle is on Keith, but you can barely see Veronica putting on her hat. In the next shot, the angle is on Veronica who is just packing up her books. She has no hat on, but then puts it on (again).
Visible crew/equipment: In the shot in the Mars apartment when Keith is going to answer the phone, a microphone is briefly visible in the upper right. (00:04:45)
Continuity mistake: Episode 1-19, "Hot Dogs": when Keith walks in on Veronica and Weevil studying, Weevil is tapping his pencil on the table top. In the next shot, the hand holding the pencil is suddenly down in his lap. (00:01:35)
Other mistake: When Veronica and Lilly find the camera in Echoll's guest house they show it on the ceiling fan pointing down on the bed. When they view the tapes of Aaron and Lilly in bed the camera view is coming from the cabinet and not from above them.
Continuity mistake: At the end of the episode, Veronica knocks on the door of room 6, implying that it was empty. In the next shot, we see under the sign for The Camelot, it says "No Vacancies" meaning Lianne could possibly be there still.
Visible crew/equipment: In the scene where Logan and Weevil are fighting in the bathroom just a the principal breaks them up you can see the sound guy's elbow in the upper right hand corner of the screen. (00:28:15)
Character mistake: Logan tells Heather that Mario Kart (Double Dash) has an online mode. It does not.
Cheatty Cheatty Bang Bang - S2-E3
Other mistake: When Beaver takes the iPod/camera, the pictures are left on Veronica's laptop. This would only be possible if the pictures were copied onto the computer. It would have taken a considerable amount of time for all of the two thousand photos to be copied. There is the possibility that Beaver copied the three or so photos of Logan, but considering his anger, that's hardly something that he would take the time to do.
Continuity mistake: In the scene where Lamb is first visited by the two FBI agents, he moves an item from the desk to a drawer. In the shot where the FBI agents sit down, the item is back on the desk.
Continuity mistake: When Veronica shows Keith the picture of Rain on the milk carton, she turns the carton around and tilts it backwards with her hand. In the next shot, her hand has disappeared and the carton is sitting flat on the table top. (00:33:25)