Other mistake: Throughout the whole scene when Black Caesar is wounded by the Irish hitman several passers-by can be seen looking directly into the camera, and in many shots people are crowded together on the sidewalk watching the filming. Conversely, the hitman fires a big and loud revolver in the middle of a crossing with dozens of people and cars in close quarters, and nobody bats an eyelid. (00:03:00)
Continuity mistake: The protagonist is having lunch with the landlady and her son, who asks him a question. Before doing that, he puts down his fork. But in the next shot, he is holding it in his hand. (00:14:25)