Continuity: Blood on Warren's naked body keeps appearing and disappearing and appearing in different parts at climax of the film.
Continuity: When Warren gets arrested by Leo Kessler, he is stark naked. When all the police cars arrive, Warren is wearing black underpants.
Continuity: Just before Warren is shot in the head, his hair is messed up from running. When the bullet hits him, his hair is neatly parted with his forehead totally exposed.
Crew or equipment visible: When Bronson is walking to his kitchen at night, he crosses in front of a well-lit, out of frame window. Clearly visible in shadow form is the head of a crewmember wearing a baseball cap.
Continuity: When Warren is chasing Betty through the woods, he's wearing pants while running in some shots.
Continuity: When Laurie slides under the bed to hide from Warren, the soles of her feet point into the camera and are clearly bare; but when Warren flips the bed up to reveal her she suddenly has pump slippers on, which remain for the rest of the film.
Plot holes: Instead of simply losing his job, Kessler would have been immediately arrested and charged for planting evidence.