At the beginning of the movie when CJ Nicholas (Jesse Metcalfe) is doing the coffee taste test he is clean shaven. When he is talking to Ella Crystal (Amber Tamblyn) outside the courthouse not even an hour later, he has a day's growth.
When C.J. and Finley are visiting the animal shelter, they ask the attendant who gives them the dog to pose for their video with a newspaper in his hand. As they are about to leave the animal shelter the attendant gives the newspaper back to C.J. In the next shot, although C.J. had taken the newspaper out of the attendant's hands already in the shot before, the newspaper is back in the hands of the attendant who then gives it to C.J. once again.
When Nicholas is released from prison, he gets into a police car from the right door. Yet when he is shown in the news after released, he gets into the police car from the left door.
When Mark Hunter (Michael Douglas) goes to the prison to tell C. J. Nicholas (Jesse Metcalfe) that the phones in the prison can be spied, he leaves and surpasses a corner. Then, the camera changes to Nicholas, who insults Hunter. When the camera returns to Hunter, he is slightly before the corner again.
When in the shop to buy a switch-blade, between 31:25 and 31:45, some shots show Corey Finley holding his bag with his left hand and some other shots show his left hand hanging down.
At the end of the trial, a reporter said the DA announced he would seek the death penalty. In fact, the DA would have had to serve notice prior to the trial that he was going to seek the death penalty and the jury would have had to been qualified for a death penalty case, i.e. jury members must agree they would return the verdict of death if they felt it was warranted.
At the end of the car chase, when Finley is killed in his car, this is done by throwing a cigarette on the leaking fuel. This is not possible in normal circumstances. The heat of a glowing cigarette is not hot enough to ignite fuel used in cars. A cigarette would extinguish in car fuel. It only could work with a lighter or matches.
Michael Douglas answers his phone upside down when he receives a call at dinner.
While gathering photo evidence, Tamblyn (Ella) downloaded file #21318 on her external drive then switched back to #11151. When Ella was looking at the downloaded file with the photo geek, her external drive clearly shows both files #11151 and #21318. She did not download #11151.