Corrected entry: Near the end of the movie, in the shot where the marked patrol cars are racing towards the prison to arrest the warden, you hear them using electronic sirens. Those sirens were not in law enforcement use until the late sixties. (01:57:00)
Corrected entry: When the warden is given a bribe by his contractor/buddy, it comes in a box containing a pie and the pie is in a disposable corrugated aluminium pie tin. The warden gives the pie to Andy in a later scene and when Andy and Red eat it, it is in a metal pie pan... the non-disposable kind. (01:06:05)
Corrected entry: At the end of the film, when he is off to find Andy, Red expresses the belief that the authorities won't care all that much about him breaking the conditions of his parole. He could not be more wrong. In the US in the Sixties he would be considered an escaped prisoner if he broke his parole, and considering he was inside for murder he would be regarded as dangerous. This is not a trivial matter and his breaking parole would be taken very, very seriously indeed. Crossing a State line would be a federal offence, bringing the FBI into play, and the US border patrol would be alerted. In short, every law enforcement agency in the country is going to be on the lookout for him, and when he tries to cross the border into Mexico he'll be arrested on multiple charges. Welcome back to Shawshank, Red.
Corrected entry: When the police read Byron Hadley his Miranda rights, they are reading a very specific edited version. This version did not surface until 1968, Hadley was arrested in 1966, the year the Miranda case was taken to court. It is implausible that any such Miranda reading would have been widely circulated at the time of the arrest.
Corrected entry: Andy Dufresne was the vice-president of a large Portland bank before his high profile murder conviction. After escape, he visited nearly a dozen banks in the Portland area. Banking is a close-knit industry know for honest people working long careers. It is unbelievable that even after 20 years, Andy could avoid being recognized as Andy in local Portland area banks. He removed an average of almost 30 thousand per bank (in 1966 dollars)- a fortune. To receive cashiers checks in that amount, he would have to deal with senior bank officials. Even though the Portland area is a fairly loose term, the banks must have been close, as he visited them before word of the escape became public knowledge. In the 1960's, Portland had a population of about 75 thousand, indicating that Warden Norton had money in almost every available bank in the area. It is inconceivable that Andy could have avoided detection of his true identity under these circumstances, even with false identification. He would have been recognized by an employee in one of the dozen banks.
Corrected entry: When Andy finally leaves Shawshank and leaves through the tunnel emerging after crawling through near half a mile of horrible slimy stuff he does not have the case with him containing the exchanged documents he switched when the warden opened the safe and when he switched bibles in the office. But we see him later after the escape in a town handing over documents which confirm his new identity.
Corrected entry: Spoiler: After Andy escapes the prison and the aftermath of the escape is shown, William Sadler seems to tell his inmates the story of how Andy bought the guards' trust on the roof. He's telling it as if it is told to someone who wasn't there - yet he's telling it to his friends, who were at the scene. It doesn't sound like he's reminding them of the event, but like he's telling the story to someone who wasn't there, like a story. This makes no sense at all, since his friends would know for sure what has happened, and only need to be reminded.
Corrected entry: It's hard to believe that Andy wouldn't have been caught in the act while tunneling through the wall. Even if he was able to time the prison guards' nightly head count inspections to avoid detection, any convict in one of the cells on the opposite tier would have been able to see directly into Andy's cell. It stretches the imagination to think that Andy wouldn't have been seen by an "enemy" convict on the opposite tier.
Corrected entry: Andy asks a bank clerk to put an envelope into their outgoing mail. This envelope contains all information about the criminal goings-on at Shawshank and is addressed to a newspaper. When Norton sees the headline in the paper, which could be, at best, two days later, he opens the safe to find the hole in the bible where the rock hammer was hidden. It's unimaginable that he would have waited for so long after Andy's escape to check the contents of the safe. (01:55:35)