Miller takes a full beer out of the refrigerator and takes one sip, but in the next shot, 80% of the bottle is empty.
When the policeman (Robert Foulk) is running to catch the young kid with the rifle on the roof of a building he jumps off the same roof twice onto a lower roof.
In Eddie's final rooftop scene, the high-angle white-washer throws his pail to warn the workers entering the cleaners. The pail and its contents splatter on the ground. After Eddie shoots the white-washer and the camera returns to the the workers, the pavement is unmarred.
In Mayors office with Liddele, the of the street (Van Ness Avenue), there is an electric bus and people waiting at the crosswalk in the picture they used for outside of the window. Obviously, the Bus nor people ever move.