Continuity mistake: When Oliver is singing along to "It's Not Unusual" by Tom Jones and is dumping all the pills onto the coffee table, the pills go from being all mixed up to in colour co-ordinated piles, and back and forth.
Continuity mistake: At the start, Summer and Marissa are talking about the weekend. Summer says something like, "I'm going mad over Seth Cohen." The camera swaps from Summer and Marissa. We see Summer first with her hair in front of her ear, then when we cut back after seeing Marissa, Summer's hair has gone to behind her ear.
Continuity mistake: Ryan walks into Oliver's hotel room twice; there are two shots of him moving from behind the hotel room to come in front of it, separated by six seconds. (00:37:30)
Continuity mistake: At the start of the episode when Sandy and Kirsten are talking at the kitchen counter, Sandy is drinking juice. After the camera switches to Kirsten and back to Sandy, his glass is fuller than it was before.
Continuity mistake: Ryan and Theresa are walking along the beach with ice creams. The amount of ice cream changes between shots. This is especially noticeable with Theresa's ice cream.
Continuity mistake: Anna's sleeves change while she is playing video games in the student lounge.
Continuity mistake: Marissa walks inside, pulls off her dress, and puts on her pink top, doesn't put on any pants but in the next shot she's wearing jeans.
Continuity mistake: The lighter and packet jump into The Nana's hands after she stubs out her last cigarette.
Continuity mistake: In the scene where Summer first goes in Marissa's room, Marissa's hairstyle changes - her hair is in a ponytail for most of the scene but in close-ups she has a visible fringe. (00:07:25)
The Shower - S1-E25
Continuity mistake: When Ryan and Marissa are play-fighting in the Balboa Bakery, their arms change position repeatedly.
The Shower - S1-E25
Continuity mistake: Aunt Cindy's arms change position back and forth, between holding her drink with two hands, and holding with one hand and the other on her hip, while talking to Caleb and Julie at The Shower, when Julie is trying to get Cindy to leave them alone.
Continuity mistake: When the camera is focusing on the pool at the hotel it slowly moves up and then we see Ryan and Seth walking down some stairs (in the upper left hand corner). We can see Ryan swinging his arms and he's not holding a drink, but in the next shot he's holding a drink.
Continuity mistake: When Ryan goes to say goodbye to Seth and Seth is sitting on his bed listening to his iPod, in one shot they are in his ears and the next they are out without him moving.
The Distance - S2-E1
Continuity mistake: The posters on Seth's walls are different to the ones he had up when he left Newport. Since Seth has been in Portland all summer and not returned home, it's impossible for him to have changed them and extremely unlikely for Sandy or Kirsten to have either.
Continuity mistake: When Ryan and Seth arrive at school Marisa goes and hugs Ryan. As she hugs him she puts her hand on his shoulders as if to hug him around the neck, or just to let Ryan hug her, but in the next shot her hands are around his waist.
The SnO.C. - S2-E5
Continuity mistake: In Series 2, Episode 'The SnOC', we see Zach punching Seth with his right fist. However, when Summer gives him some ice, he covers his left fist with it (which is now bruised and swollen).
The Chrismukkah That Almost Wasn't - S2-E6
Continuity mistake: When Seth is holding the wheel of jobs for Chrismukkah the arrow on the wheel changes positions repeatedly in between shots.
Continuity mistake: When Ryan and Lindsay are making out, Ryan's hands change position in different camera angles, as well as the way Lindsay is sitting when Kirsten interrupts them.
Continuity mistake: While Sandy is singing and they all have their arms around each other, from the front, you see Alex is next to Zach, but from the back, Marissa is standing next to Alex and not Zach.
Continuity mistake: Sandy's hands change from being on the microphone and being in the air between shots while he's singing.
Answer: Hallelujah by Jeff Buckley.
Bobbert