Continuity mistake: After Elsie has been kidnapped, there is a scene where a little girl walks up to an old man to ask him for the time. A man notices this and walks towards the old man. The old man is standing in front of a light pole which casts a shadow onto the pavement. In another shot, there are no shadows near the light pole.
Continuity mistake: Near the end, when Tom Powers is waiting in the rain to murder Schemer Burns, we see Tom wearing a tall, straight-crowned fedora that is only slightly tilted to his right. Suddenly, and for no apparent reason, we see a close-up of Tom wearing a completely different, taper-crowned fedora that is tilted deeply to his left. This close-up lasts for 7 seconds, then the shot returns to Tom wearing his original tall, straight fedora.