Sean's hair goes from being cut and well kept to longer and shaggy between shots near the end of the film.
At the beginning of the film, a title states that the movie is set in "Carson County, West Virgina", clearly missing the third "I" in Virginia.
In the first shot of the characters arriving at the farmhouse "in the mountains", a smokestack from a power plant (which requires flat land near water) is visible to the left.
The edges of the latex appliance are clearly peeling off during Maggie's exposition on the porch of the general store.
During a fight scene with one of the scarecrows during the movie's climax, they attempt to hang the scarecrow by a chain. The chain is practically brand new, yet, nobody has lived in the farmhouse since the late '30s.
During the opening sequence, none of the newspaper headlines match their stories.
During the scene in Lawyer Hargrove's office, the reflection of the man holding the boom (particularly his hand and the lower end of the boom) is clearly visible in the glass of the print on the wall behind him.