Visible crew/equipment: At the start of the Exodus, the Narrator states, "After the stifling night of terror, came a day such as the world had," and just as the Narrator continues to say, "never seen," a crew member wearing a white short-sleeved shirt and dark pants is visible walking in the background, at the right side of the screen.
Visible crew/equipment: The scene where Martin and Ethan watch the Cavalry ride in through the river, a car or truck is seen driving up a road to the right and comes to a stop.
Revealing mistake: In the scene out West with the buffalo, notice the car driving in the distant background.
Continuity mistake: When they are dancing the king's earring is on his left ear then it somehow jumps across to the other ear.
Visible crew/equipment: When James Stewart tells Doris Day that he lied about the telephone call being from the hotel, Doris gets excited and James struggles with her on the bed. During that scene, you can see on the upper left corner a shadow of a microphone.
Continuity mistake: In the final shot, just as the credits are rolling, the British warships are sailing away with the sun setting behind them. In an earlier scene the radio commentator says that the sun is setting and a shot of the sun touching the surface of the sea is shown.
Continuity mistake: When Ishmael is in bed watching Queequeg looking around his room, his head rotates between shots.
Factual error: As was the case in Buster Keaton's "The General" film, the General locomotive portrayed in the film more closely resembles the actual locomotive's 1893 appearance rather than its wartime appearance. As built, the General had three domes, an ankle bar on each side running the length of the engine, as well as the Western and Atlantic Railroad's then trademark strap-iron cowcatchers with horizontal slats. The engine was rebuilt in the 1870s, with the bars and third dome removed, and cowcatcher changed to the more conventional design seen in the film. The Radley Hunter Balloon stack the engine had was replaced with a diamond shaped one at this time, as the engine was converted to coal. The engine received a stack more closely resembling its original one in 1893.
Continuity mistake: When Robert Wagner falls, halfway up the mountain, Spencer Tracy's rope, which is attached to Wagner, runs through his hands, making them bleed, but, finally, he gets a grip and he pulls Wagner up. As we see Tracy's rope, as it slowly comes up, but there is no blood on it.
Continuity mistake: When the Tartar princess Bortai is first shown, and throughout the first part of the scene when John Wayne and Pedro Armendáriz ride to check her out, she lies in a litter shrouded in shadows or perfectly lit, depending on the shot. (00:03:40)