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)
Visible crew/equipment: After Rockford causes the car to crash, and he escapes from his abductors, the reflection of lighting and filming equipment is visible across the side of the car. (00:28:15)
Visible crew/equipment: While Rockford is in the parking garage he's abducted then placed in another car, and when the front passenger door is closed, we can see the reflection of the camera operator and camera on the door's surface. (00:26:50)
Visible crew/equipment: When Rockford is riding in the car with his abductors, in the exterior shots facing all three men in the car, the shadow of the camera is visible on the car's hood. The car's rearview mirror also vanishes and reappears on the windshield between shots. (00:27:30)
Visible crew/equipment: While Rockford tells the other jurors that he has reasonable doubt, and that he's not changing his mind, under the table there's a visible white T-mark taped to the floor between Jim and the juror beside him. (00:08:10)