Character mistake: Before they jump off the plane Halloran should at least have checked if Sellinger has his parachute strapped on properly, knowing that the other guy has absolutely no experience. (01:05:55)
Character mistake: After Captain Willard walks through the front door of the burnt out French plantation dock there's a close-up of Chief Phillips at the wheel the boat. He turns around and looks right at Chef and says, "Lance". (01:56:40)
Character mistake: When Jackie the babysitter is stuck in the closet, she explains to George and Kathy that the door was locked. George says Amy there's no lock on this door. Her real name is Amy and her film name is Jackie.
Character mistake: Jimmy is at work, feeling sick in the toilet. Two other employees are talking at the sinks. The man on the left is called Phil by his colleague at the beginning of the scene, but at the end of the scene, he calls him Simon.
Character mistake: In the scene where the warden gives Frank the rules of Alcatraz. The warden states that prisoners do not get to see newspapers or magazines. Later when Frank distributes reading material from the Library to D block, he offers the prisoners books or magazines. One prisoner is seen taking a magazine to read.
Character mistake: USA flags are supposed to be displayed with the Union (blue area) on top left corner, whether it's displayed horizontally or vertically. USA missiles at times displayed the flag backwards. Also, at the end of the movie, the flag hung on the hangar next to the USSR flag is backward. (01:40:57)