The position of the Mountain Girl's head changes when Belshazzar arrives at the marriage market. In one shot her head is bowed; in the next, she is looking up at him; and in the shot after that, her head is still bowed, and then she looks up at him.
In the modern story, when Jenkins stops outside the dance hall, he picks up a coin in one hand. In the next shot (a closeup of the coin), it is in the opposite hand.
In the opening of the Babelonian story, shortly before the intertitle reading "Dearest one - in the ash heaps of my back yard...etc." (spoken by the Rapsode), a group of extras behind the Mountain Girl are shown get up and walk off to the left. In the next shot, when the Rapsode puts his face up to the Mountain Girl's ear to speak his line, these extras are shown to still be seated in their former places.
During the Babylonian bacchanal, the same slave girl is standing behind both Belshazzar and Beloved. She is looking in different directions and has her arms in different positions in each shot.
When Monsieur La France is shown with the puppies in his belt 'pocket', the long shot shows his arms in the air. The next close shot, however, shows a hand under the 'pocket' the puppies are in, and then it cuts back to him with his hands in the air.
One of the early title cards in the Judean sequence refers to Jesus having been from "the carpenter shop in Bethlehem". Though he was born in Bethlehem, he worked with his father in a carpenter shop in Nazareth, which is why he was known as Jesus of Nazareth.
Catapults had not been invented in 539 BC.
The Babylon Temple is adorned with elephant statues. The elephant was not indigenous to Babylon, and it is highly unlikely anybody living in Babylon ever would have seen one.
Alexandre Édouard de France (later King Henry III) is referred to as "Monsieur La France", when he should be called "Monsieur de France".
While the Vestal Virgins of uplift are at the party given by Ms. Jenkins and are indoors the whole time, the feathers on their hats flutter, and their dresses are blown as if by a breeze. This sort of thing occurs in numerous indoor scenes throughout the film, as interiors were shot on outdoor sets.
An extra, out-of-character, can be seen fumbling with his costume in the Belshazzar feast sequence.
Near the end, when the soldier runs his sword through Brown Eyes, it's obvious that the sword slides past her body on the side away from the camera. Also, when she falls, there is no hole in her tunic.
Tire tracks can be seen during the chariot race sequence.
The Director's assistant is clad in coat and tie.
(at around 1h 45 mins) In the Babylonian Banquet Hall, the camera pans up to the gallery round the nearest plaster elephant and a workman in a peaked cap and an overalls walks out from behind the elephant and looks around. He may be joined by another workman, but he's partially obscured.
As the Jenkin's factory militia goes to attack the striking workers, the shadows of a camera and two cameramen, one on either side, are cast onto the ground in front.
A camera shadow can be seen during the tracking shot of the walls of Babylon, right before the Mountain Girl is introduced.