Continuity: When one of the "sisters" gets beaten up by Capt. Hadley he tries to escape from his cell and holds on to the bars on the other side of the passage. From the side his right hand grabs a diagonal bar, but seen through the bars he is holding on to a vertical bar.

Continuity: In the scene where the warden is tossing cells and comes to "size up" Andy, it shows all of the chess pieces on the window being knocked over while one is in the guard's hands. After a short time one of the pieces is upright again, without anyone touching them.

Continuity: 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.

Continuity: Andy is discovered missing. While the warden is walking to Andy's cell, he tells the guard to question "him", meaning the Morgan Freeman character. He points to Freeman with his left hand but when the scene changes its point of view he is pointing with his right hand.

Continuity: When Andy is in the bank, in the background you can see a man in a "porkpie" hat and a white shirt move forward to talk to the cashier. As Andy stands up to leave, the man can be seen again, standing towards the back of the queue.

Continuity: When Norton loads his gun the bullets are scattered over the table. When he takes aim the bullets are neatly in one place, but after has has shot himself they are scattered as before.

Continuity: When Norton prepares for his suicide you see on the desk a photograph and, a bit away, a lamp. After he has shot himself the photograph is leaning against the lamp (it was too far away in the previous shot to have fallen against it). There's some sort of card open on his desk on some paperwork which suddenly moves onto bare desk as well.

Continuity: As Norton kills himself, the glass that blows out behind him is quite large and about half of the frame gets blown out. There are a few specs of blood on the window as well. A couple of shots later as the camera pulls back and shows Norton you can see the hole in the window is quite small and shaped differently and a smear of blood above the hole now.

Continuity: When Red finds the metal box he takes out an envelope in a plastic bag, folded up on the right side. When he opens it the crease is on the left side. He hasn't turned it over.

Trivia: When the Warden opens the Bible from his safe after Andy escapes, he opens to where Andy hid his rock hammer. The book of the Bible he opens to is the book of Exodus, the book chronicling the Israelites escape from Egypt.