When Josh (Steve McQueen) is in the Sheriff's office, describing the situation to him (the sheriff), you can see a full body shadow on the open door. It is a man with a cowboy hat on, obviously standing just outside the doorway. Sure enough, after almost an entire minute, Daimler (Mort Mills), who was waiting for his cue, makes his entrance into the Sheriff's office. This is clearly a mistake. Daimler should have waited elsewhere, so no shadow would have been cast into the full frame picture.