Visible crew/equipment: When Wendy goes into the bathroom, you can see the cameraman's shadow moving. (00:48:45)
Continuity mistake: In the last scene of the shoot-out, watch as the blood pattern changes on Baby's left cheek and lip area.
Continuity mistake: When Sheriff Wydell hammers the nail through Otis's hand, at first the nail has gone through nearly all the way, but in the second shot it is sticking half way out. (01:29:05)
Continuity mistake: When Otis has taken Roy and Adam out to the desert, when they leave the both van doors are open, but in one shot one of the doors is shut. (00:41:25)
Continuity mistake: When Otis is driving away with Sheri and Captain Spaulding, at the end, there is no rear view mirror, yet when they are driving during the day it is there. (01:36:20)
Visible crew/equipment: When Sheriff Wydell is trying to kill Sheri, you can see the cameraman's shadow on his back. (01:33:15)
Continuity mistake: When Candy is talking to her boss, he puts the money in the box and it changes position, then even disappears in one shot. (00:19:05)
Continuity mistake: When Mother Firefly is showing Sheriff Wydell the next book from the pile, before she takes it the book on the table is closed, but when she takes the next one off the pile it is open. (00:37:35)
Continuity mistake: When Otis and Sheri are driving to the motel, on the dashboard there is a closed box of cigarettes, yet in the next shot they are open. (00:20:50)
Continuity mistake: When Otis beats up Roy, his hat moves into a number of different positions between all the shots. (00:43:35)
Factual error: Considering it is 'supposed' to have taken place in the late 70s, why were the characters popping the caps off of their beer bottles? Pop-off caps weren't first introduced until the early 80s.
Revealing mistake: Visible blood pack on the waitress's back when she gets stabbed by Otis.
Continuity mistake: When Mother Firefly is in her cell, her hands are shackled with only a few inches of slack between the wrists. However, when she is telling Sheriff Wydell that he's got himself into something he's never getting out of, her hands are suddenly uncuffed, and she extends her arms near her head in a dramatic gesture.
Deliberate mistake: Otis was portrayed as an albino in "House of 1000 Corpses" but in this film he has normal skin pigment.