Revealing mistake: When Amy and Ben are sitting on the stairs talking and she asks him if he was freaked out about her saying that they could move in together, if you look in between the bottom stair rails, there is a man in a yellow shirt jumping up and down waving his arms.
Revealing mistake: When the two main characters explode and then implode near the end, you can see that some of the debris being sucked in are passing "through" various other objects, revealing they are computer generated.
Revealing mistake: When the stabbed photographer is left sitting on the toilet the blood stains on his pants are virtually colorless. (00:32:35)
Revealing mistake: When Barry is arguing on the phone with the Healthy Choices employee, the map on the wall behind him is creased in the Texas/Arkansas area before he punches it there. This could perhaps be the result of a previous take or some sort of indication of where the soft spot in the wall is so that Adam Sandler doesn't really break his hand. (01:00:25)
Revealing mistake: When Uncle Mike and Johnny go upstairs at the party to hustle Phil and company, Phil shoots the eight ball towards the corner pocket, and the sound effect indicates he made the shot. Phil says, "That's how we do it," but right as he says this, the eight ball is seen slowly rolling back into the shot, revealing he actually missed the shot.
Revealing mistake: When Tommy and her boys are roughing up Randolph in Angie's apartment, Tommy throws Randolph across the room into the piano. The vase sitting on top of the piano falls before Randolph ever touches the piano. Seen better in slow-mo. (00:57:20)
Revealing mistake: When John goes to close Gordon's eyes, as he lowers his hand, you can see him close his eyes on his own.
Revealing mistake: When Simone is performing in concert, the auditorium is supposed to be packed full. But when the camera flies over the audience, in the background you can see empty space because only about 100 extras were recruited for the audience. (01:04:00)
Revealing mistake: When Kevin Bacon is talking to Courtney Love on their cell phone and he hangs up on her, a dial tone can be heard on Courtney Love's phone.
Revealing mistake: When you watch the accident scene frame by frame you see that Laroche's mother and uncle are replaced by dummies. You can see the joints in his mother's hands and a large spring that holds his uncle's head in place. (00:41:50)
Revealing mistake: When the people come to take the girls away, the mothers and girls run, with the camera in front of them. You can see the wheel tracks in the dirt from where it is being towed back.
Revealing mistake: Winnie gets angry at her parents and runs out of the house. As her father stands up and she runs past the camera it wobbles, shaking the screen a bit.
Revealing mistake: When Sarah is hit on the head by a stone she's not bleeding, and the injury looks rather dried-up. (01:16:25)
Revealing mistake: The alarm clock stops on its own after just 9 seconds of beeping. Real alarm clocks go for longer / forever to make sure you're awake. (00:06:05)
Revealing mistake: The scene right after Mrs. Moore delivers the first batch of telegrams shows Lt. Col. Moore kneeling beside several "dead" soldiers. I could see at least the first four breathing.
Revealing mistake: This film takes place in Norway, some time around the 1860's, however, in the background in one or two of the beach shots is a Norwegian brand Pioneer, not manufactured until 1959.
Revealing mistake: When Jack and Algy are singing "Lady, Come Down" to try to get the women to listen to them again, the above shots of Algy playing the piano do not match the music being played. He scarcely even seems to try to make it look real.
Revealing mistake: The makeup artists tried to make Mandy Moore (Jamie) paler for the movie, but they neglected everything but her face. In the star registry scene, notice how tan Jamie's legs are compared to her face. In the scene where she is sleeping on Landon's shoulder, you can see how tan her shoulder is compared to her face where as Landon pulls her sweater back over her shoulder. (01:04:00 - 01:18:40)
Revealing mistake: On the FDR, when Doyle tries to thumb a ride in the rain, the only vehicle using wipers in the 'downpour' is the one that passes Doyle. All the other vehicles in the background driving northbound on the dry FDR are not, and in fact driving beyond the reach of the crew's artificial rain in the foreground. (00:10:30)
Revealing mistake: When Lanie and Pete drop off Pete's son, he is supposed to be asleep, but as they pull up to the house you can see the kid awake and talking and only when the car stops does he close his eyes.