Continuity mistake: At One Eyed Jack's, when Agent Cooper and Jacques are sitting and talking there are 2 glasses of beer on the table. In one shot Jacques finishes a glass. When he gets up, both glasses are full. (00:10:20 - 00:11:40)
Continuity mistake: When Cooper is at the police station describing the events of the night of the murder, he is seen taking a doughnut and placing it on the napkin next to him. A few shots later his napkin is empty and the doughnut is back on the stack.
Continuity mistake: The position of Blackie's fingers on Audrey's chin switches depending on the angle. From behind, her fingers are straight; from the front, her fingers are scrunched up/bent.
Episode Nine - S2-E2
Continuity mistake: The necklace James took from the coconut in Dr. Jacobi's office in the previous episode had a gold chain. When he gives it to Agent Cooper in this episode, it's on leather.
Continuity mistake: When the three drinks are placed on the bar in front of Cooper, the sheriff, and the judge, the amount of foam on top of each drink changes drastically between angles.
Continuity mistake: Ben Horne's glasses are knocked off during his arrest at the Great Northern. No one picks them up, but when he is brought around the corner of his desk, he's wearing them again. (00:28:50 - 00:30:30)
Continuity mistake: The plate, bread and milk that Pete drops on the floor change position between shots.
Continuity mistake: At the Roadhouse, Donna has her hand on the only glass of drink on the table, but whenever the shot cuts to James, the drink is next to him with nobody holding it.
Continuity mistake: After Nadine smashes the milkshake glass, the cream and blood which has splashed on her face changes between shots.
Continuity mistake: In the hotel lobby, the chair that Leland knocks over switches between shots between lying on its side and on its back.
Continuity mistake: After Leland is pulled over by the police, he goes to open the boot of his car, and he is wearing dark gloves. When he rummages in his golf bag containing the body for a golf club, he is wearing no gloves. Then he holds the club in the air to show Cooper and the gloves are back again.
Continuity mistake: The amount and pattern of the golf balls on the Palmers' living room floor changes between shots.
Continuity mistake: Nadine decides to lift leg weights beside Mike. She sets it to 600 pounds. However, whenever it changes view to her lifting from the angle of Mike, whenever the coach asks her to join the team, you can see that Nadine is not lifting any weights. (00:19:45)
Continuity mistake: When Mike Nelson asks Donna for help in dealing with Nadine, Donna's right hand is inside her locker, looking for something. It then mysteriously jumps to the top of the stack of books she has in her other hand. (00:12:45)
Continuity mistake: When James is talking to Evelyn Marsh after fixing her husband's car, Evelyn's hand jumps from her lap to the steering wheel between shots. (00:22:00)
Continuity mistake: When James and the blond women decide to have a cup of Champagne together, James put the bottle down on the seat and while they're discussing the bottle vanishes. (00:33:30 - 00:34:15)
Continuity mistake: When Donna confronts her mother about Ben Horne, she is asked to pass the peas. Her mother fills her plate with peas. Only a few sentences later Donna is asked again to pass the peas and her mother fills her plate again, without having eaten anything in between. (00:42:10 - 00:43:10)
Chosen answer: Killer BOB is a demonic entity that emanates from a realm of pure evil known as the Black Lodge, a place that exists on an alternate plane of reality. BOB feeds on human pain and suffering and can travel on earth by possessing human beings and also as an owl. While possessing humans, he commits horrible acts to elicit pain, fear, and suffering from those who are around him, using that as nourishment. BOB possesses Leland Palmer, later forcing him to abuse, rape, and eventually murder his own daughter, Laura, and later to commit suicide.
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