Continuity mistake: At the end, while the Bassetts and Karen Hathaway are at Rockford's trailer, there's still damage to the door's wood trim from the earlier shooting, but when the couple exit the trailer all of that damage disappears, between shots. (00:44:10 - 00:44:55)
Continuity mistake: While Rocky and Jim are at the trailer discussing jury duty, when George and Fran Bassett arrive Jim tells them to come in. In the shot facing them, as they climb up the exterior steps and walk through the doorway, changes occur; there are four holes in the door trim, there's only about three inches space between the shutters and doorway, the toggle switch is down. Next shot, the four holes are gone, space between the shutters and doorway significantly increased, and the toggle switch is now up. (00:12:40)