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)
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: Episode 1-19, "Hot Dogs": in the scene where Mandy is reading "Judy Blume," she holds the book with her hands on both covers, but in the next shot, her right hand jumps to the bottom of the book's spine. (00:20:20)
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).
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.
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.
Continuity mistake: The morning after Veronica is raped, she readjusts her dress' strap on her left shoulder. In the immediate shot after, the strap is down again. (00:22:00)
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.
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).
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: 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)
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: When the lady knitting is talking about why the motel manager took so long to look out the door, she isn't wearing her glasses. However when the shot changes to looking down the table at Veronica, you can see her glasses on her face on the left hand side.
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 gets the SMS about Aaron's verdict, her hands switch around from being below to above the desk.
Answer: 1. No, the pep squad uniform was green and yellow. 2. He failed one of the classes, the one where they were trying to launch an egg from various heights without cracking the egg. He was pairing with Angie Dahl, who told the teacher that he didn't do anything in the project. The teacher then asked him to pick the project he worked on, and he couldn't do it because he didn't help. Then the teacher told him, "See you in summer school." He couldn't graduate with everyone else because he needed to attend summer school in order to pass that class and graduate. It's assumed that he did, in fact, attend summer school, despite all the mess that happened in the season 2 finale.