Factual error: In the close-up of the violin being strung, it is obvious the strings are of contemporary origin. You can see they are translucent plastic; not exactly historically accurate.
Continuity mistake: When Platt is putting clapboards on the frame, after Tibeats tells him to make them flush he has one nail in the center of a plank when he sees Patsey being pulled out of another building. He takes his hand off the plank and watches. The plank is at three different angles depending on the shot, although Platt is standing several feet away and has not touched it again. (00:45:00)Greg B