Continuity mistake: During the Xmas day scene, Markus receives a Sony portable CD player as a gift from Will. However, before the gift's unwrapped, the Sony box is visible on the table. (00:51:45)
Continuity mistake: At the "Big Pipe" contest the star gets trapped under water when her leash gets caught on some rocks. You see her undo the velcro on her ankle and then abandon the board (with the leash attached). About 20 seconds later when she is diving below the oncoming waves you can clearly see the leash re-attached to her ankle.
Continuity mistake: Toward the beginning of their drive, while the girls are singing "Bye, Bye, Bye" the position of the window behind Mimi keeps changing. Sometimes it is all the way up, then it is part-way down, then back up again.
Continuity mistake: When Toula goes to meet Ian at the school where he works, and they are talking in the hallway, her arms occasionally move from behind his neck to the front of his shoulders. The continuity is correct at the bgeinning of the scene, but at the end it happens a few times. (00:48:05)
Continuity mistake: In the split screen scene when Lauren removes Sean's sunglasses, you can see that after the shot pans outward where both are facing each other, they are actually several feet apart. There is no way she could have reached his face from where she is standing. (00:37:01)
Continuity mistake: When Memnon is talking to the sorceress in his palace, he talks about the dangers of her being outside "his care." Memnon takes some meat and throws it to the tigers. The next shot shows his hand empty, then holding meat again, and then empty again. (00:20:30)
Continuity mistake: When Sandra and Hugh are trying to get to the RV, a door opens and Sandra slips. She stands up with the help of Hugh and her skirt is completely clean. But in the next shot there is dirt on her skirt, supposedly from falling. (00:56:45)
Continuity mistake: In the scene where Santa is getting married, just after they kiss and Santa looks like Santa again, you can see in the bottom left hand corner Bernard and Curtis giving each other the thumbs up. In the very next shot, it repeats them doing this again only in a close up. (02:33:00)
Continuity mistake: When Marisa is going to the gala, she is wearing a peach chiffon wrap. When she enters the gala, it is gone and never to be seen again, (even when she leaves the gala and Chris follows her out).
Continuity mistake: During the scene in which the homeless character portrayed by Steve Buscemi is having a conversation with Longfellow, he is eating a slice of his favourite pizza; French Fries & Oreos. In shot in the scene Buscemi takes a bite out of the slice of pizza, and there is one Oreo on the slice, toward the front of it. Then the shot goes to Longfellow for a moment, and in the next shot of Buscemi, the Oreo is suddenly at the other end of the slice. The Oreo continues moving from the front to the back of the slice throughout the scene. (00:11:25)
Continuity mistake: When Shawn is teaching the new drummers not to look at their drums while they play, he and Devon play together until Shawn drops a stick. At this point, Dr. Lee comes over and starts playing with Devon, until Devon drops a stick. The drum stick falls from Devon's hand and bounces around on the field. In the next shot, Dr. Lee is talking to Devon, neither has moved, but now Devon has both sticks in his hand.
Continuity mistake: Before Alice enters the building, you can see part of her newspaper sticking out of her bag - the area that is visible just contains text. After she enters the building, there is another shot of her from behind, and now the paper is showing part of a picture and the barcode. (00:06:15)
Continuity mistake: During the scene when Van and his friends are riding in Van's golf cart, just after Van has sex with the secretary, the guy in the back is seen being licked on the face by the bulldog. When the camera cuts to Van he's not being licked. When the camera cuts to Van's assistant he's being licked again. This happens over and over. (00:15:53)
Continuity mistake: During Frank's appointment with Dr. Bowman there's a sculpture with an arrow on the desk in all shots on the doctor, but the sculpture isn't there when we see Frank. (00:29:15)
Continuity mistake: When Dr. Doppler and Jim first observe their ship, Dr. Doppler is right next to Jim when he points it out. When the shot changes to a long shot, they're much farther apart. (00:16:55)
Continuity mistake: In the scene where Josh Hartnett is about to break his vow in the bathroom, he opens the window and jumps out. In the shot of people looking at Jerry, the window is closed when no one touches it. (01:00:40)
Continuity mistake: When Joe is leaving the dinner party after talking to the grief counselor, he puts on his jacket and the collar of his sweater is flat underneath it. The camera cuts away and when you see him again his collar is standing up closer to his neck. Then the camera cuts away and his collar is flat under his jacket when it comes back to him again.
Continuity mistake: When the pregnant Sarah watches the girls trick-or-treating Mateo there's a shot of her belly where she looks like she's almost due, but in later scenes it's much smaller, especially when she tries to keep Johnny from leaving the apartment and holds her hand against her absolutely flat belly. (00:42:40 - 00:55:00)
Continuity mistake: Amaro gets beaten up by Ruben and receives some bruises in his face. A little later, when he meets Amelia in the church, the bruises are gone. (00:57:50)
Continuity mistake: At the end of the movie, when Melanie is on the beach with Jake and she goes to kiss him she has her hands on his face, but in the next shot her arms are stretched out and she wraps them around his neck. (01:36:20)