Late in the film, Eddie is seen crouched and targeting for a kill shot by a smokestack painter. The latter throws his pail of white paint onto the street below to get the attention of the people who could not hear him and the pail and its contents splatter on the ground. After Eddie shoots the man and the camera returns to the street, the pavement is unmarred.
Miller takes a full beer out of the refrigerator and takes one sip, but in the next shot, 80% of the bottle is empty.
In the first shot of the Alpine Checker (Geraldine Carr) on the cable car, it's #523 in regular service Eastbound on Washington, approaching Mason, on the Washington-Jackson line, but in the next shot, in which she alights, it's car #510 on the Powell-Mason line., with a "Jackson-Mason Only" dash sign, obviously commandeered by the producers exclusively to be used for this one shot.
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.
As the police close in at the end with sirens wailing there aren't any people on the street. The sirens provides continuity when they cut and suddenly there are throngs of people.
Despite his (self-inflicted) seriously burned right hand, Edward Miller (not a leftie) appears to have no difficulty shooting, driving, working, or doing any of his normal activities/chores.