Audio problem: When Willa Harper is lying in bed talking to Harry her mouth movements are out of sync with the dialogue.
Continuity mistake: On the honeymoon night, when Willa approaches to the bed, Harry stands up and lights the lamp above in front of him. Between shots the lamp changes position.
Factual error: After Harry Powell disappears from in front of Ms. Cooper's yard, a barn owl swoops down on a rabbit. We can hear the owl's wings flap even though barn owls make no noise when they fly.
Factual error: The film is set in the 1930s, but John wears 1950s sneakers.
Continuity mistake: When Icey Spoon talks negatively about being married to Walt for 40 years at the picnic, his reaction shot shows him set down the piece of chicken. But when Willa calls for John, we see Walt is holding the chicken again.
Continuity mistake: Mr. Spoon opens the cabinet to get the peach brandy. In the next shot, the cabinet is closed and he opens it again to put the brandy away.
Continuity mistake: When John is telling Pearl the bedtime story, Harry's shadow appears on the bedroom wall. When John looks outside at Harry at the gate, the angle of the streetlight next to him would not throw the shadow into the house, but instead onto the ground in front of him.
Audio problem: On their honeymoon, Harry tells Willa, who is on the opposite side of the bed, to go look at herself in the mirror. As she walks towards the mirror, her footsteps sound like shoes on a wooden floor, but once her feet are in view you can see that she's in her bare feet, and the sound stops.