Continuity mistake: Grace gets the plate with the breakfast order, consisting of two eggs, two bunches of fries, 2 slices of bacon and 3 sausages. She rearranges them to serve them in a funny face pattern, supposedly, but one piece of sausage is missing, the fries are soaked in oil and eggs and bacon appear less cooked than before. (00:02:00)
Continuity mistake: When Lucy comes home at the beginning of the movie she quickly buttons the top of her dress. While eating dinner, it is open and then buttoned again between shots.
Revealing mistake: When Wil is showing Sylvia how to shoot, and she fires, Justin Timberlake can be seen wearing earplugs. When the scene cuts, he no longer is wearing them.
Visible crew/equipment: During the attack on the town, right after Jake breaks Percy's hand to get out of the cuffs and begins kicking the wagon door we see an exterior shot of two people running and just before one does a flip, film crew is visible on the left. We see at least two people sitting in chairs, one wearing a bluish short sleeve shirt, shorts, and boots, and another in a white shirt wearing a baseball style cap. We also see a blue light coming off their equipment. (00:35:30)
Continuity mistake: When Laurence asks Colin for a cigarette in the screening room, he has it between his fingers when Colin lights it, but when the shot cuts, his fingers have disappeared from around the cigarette. (00:45:30)
Continuity mistake: When Cal and Emily are sitting in the classroom whilst attending Robbie's Parent/Teacher meeting, when the teacher initially writes the word 'asshole' on the board, it appears to be written differently on three separate occasions during the same scene. (00:59:40)
Factual error: When Watson is looking at the spiderweb of clues in Holmes' apartment, he is shown a newspaper article about the bombing and doctor's death. The lower left of the clipping shows a story with title "Soviet Government Money For The General Strike." The movie is set in 1891, and the term Soviet first came into use in 1905 to describe a worker's movement in Russia, but a Soviet Government didn't exist until 1917. (00:16:00)
Continuity mistake: Arthur is talking to the police, posing as Naomi's fiance: one of the cops asks, ridiculing her lie, "You had your first date at Grand Central Station?" Behind him, a white haired man in a black suit walks down the street carrying a brown suitcase. Next time the policemen are in frame, a different crowd is on the sidewalk, and only after another cut, and more of Arthur's blabbering, suitcase man reappears as if nothing happened. Even better, over half a minute passes and many totally different people...but right at the end of the scene as the policemen wave Arthur goodbye the same man, sans suitcase this time, is there again walking the same way as before. (00:19:45 - 00:20:30)
Continuity mistake: At the airport Tim gets a red Chevy Cobalt for a rental car. It's a base model with no rear spoiler. Later he is seen driving a red Cobalt with a rear spoiler.
Continuity mistake: When we first see Jay there is a brown item folded next to the laptop. Camera changes and it's gone. (00:02:30)
Continuity mistake: Stan is sitting at his desk listening to the answering machine messages and failing to do anything productive. During the whole scene, the handle of his mug switches orientation, pointing at him in every faraway shot, pointing to his left in every closer shot. (00:04:25 - 00:05:30)
Continuity mistake: When Reid and Kato are fighting by the pool, the beach ball falls off the chair (beside the pool) when they land in the water, but is back up on the chair in a following shot. (01:12:25)
Continuity mistake: When the woman is writing on the whiteboard how many people people infect with certain illness' the writing on the board changes style. (00:18:40)
Continuity mistake: At the end of the movie, the bloody handprint on the car changes entirely the second time it is shown. (02:02:45)
Continuity mistake: After Johnny gets drugged he is made to hit Pegasus and he pulls back his arm instantly after he hits her and then again when he says "I warned you."
Continuity mistake: The protagonist's music video dream gets interrupted by Victor strumming his guitar and asking for waffles. In the overhead shots, the necklace is quite prominently embedded into the cleavage of Lucy Hale. They alternate with a sideview where the string is spread across her chest. (00:01:25)