Corrected entry: Sean Penn's injuries after the car accident change from the court house scene and several more times throught the begining of his incarceration.
Corrected entry: In the first classroom scene, O'Brien could not read what was written on the blackboard. In a later scene he has no trouble reading aloud the work assignments from a clipboard.
Correction: He can actually read. He was faking not being able to read so he would fit in with the other illiterate misfits. In an environment like that, you do your best to blend in.
Corrected entry: JC is escorted into the open police room for the suspect lineup, in which they turn and actually face her. This would not happen in reality, but behind a mirrored glass to protect the witness during an identity.
Correction: Depends on a jurisdiction and facilities available. I was a witness to a theft, and actually sat in the waiting room of the police department next to the offender, while waiting for the constable to arrive so I could identify the suspect.
Correction: His injuries change because they're healing.