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Continuity mistake: As Mitch checks the doors and windows look closely at the table to the left of the brown chair on the bottom left of the screen, it has on it an ash tray very close to a plate and a silver box. The shadow of the brown chair falls on the silver box but the next time we see this table, after Lydia straightens up, the brown chair has been moved away to make room for the camera and its shadow no longer falls on the box. (01:36:50 - 01:39:10)

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Continuity mistake: As Mitch and Lydia talk in the kitchen the far wall in the dining room becomes darker between shots. (00:38:00)

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Continuity mistake: Melanie cleans off all the blood on her forehead and in her hair with the Kleenex, but in the next shot there's more blood that appears in her hair than before. (00:27:20)

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Continuity mistake: Melanie's car is parked in front of the Bodega Bay bar as she fills out the card to Cathy then she pulls straight forward. In the next shot we see a car parked in front of her that she should have hit. (00:19:15)

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Continuity mistake: The picture frame on the left of Annie's desk has been moved from when we first saw it. It's been turned in slightly and moved away from the lamp at the end of the scene. (00:46:45)

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Continuity mistake: When Mitch puts the bird he caught back in its cage the other bird that was in the cage with it is not there. (00:06:25)

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Continuity mistake: Annie's body changes position on her front steps. At first her head is on the edge of the sidewalk and Mitch doesn't move her. Then after he runs to get Cathy he comes back and covers her with his jacket and her head moved about six inches from the edge of the gravel sidewalk. (01:30:20 - 01:31:35)

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Continuity mistake: As Melanie and Mitch stand by the canary cage she puts the pencil on her chin and it's not there in the next shot. (00:05:00)

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Continuity mistake: As Mitch checks the doors and windows he returns to the living room and everything on the table has been rearranged and no one moved from where they were sitting. He's not there but his cup moves from the being next to the edge of the tray to being adjacent to the handle. (01:38:15)

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Continuity mistake: As the school children start running down the hill Melanie holds her hand out to a little girl in a mustard colored sweater. In the next shot the little girl is running alone in middle of the pack near the left of the screen. (01:13:35)

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Continuity mistake: As Melanie speaks to the pet shop cashier she holds her head to the left. In the next shot she's looking straight at the cashier. (00:02:40)

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Continuity mistake: Annie's position in the doorway changes between shots but Melanie's eyes stay fixed on one spot as she's speaking to her. (00:31:50)

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Continuity mistake: When Mitch first picks Melanie up he swings her around and has his left arm around her neck. In the next shot as he walks down the stairs his arm is around her back. (01:49:55)

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Continuity mistake: When Melanie reaches for the flashlight on the coffee table it's been moved closer to and slightly in front of the kerosene lamp and she hasn't touched it. (01:45:20)

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Continuity mistake: As Melanie and the rest look out of the restaurant window the pencil in the ear of the waitress is in one place in the close-ups and another in the wider shots. (01:25:00)

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Continuity mistake: As Melanie hands lumber to Mitch the upper window has no curtains on it and a light can be seen shining through. In the next shot there are curtains on the window. (01:34:00)

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Continuity mistake: As Melanie and the store manager look across the bay the piece of paper scotch taped to the window above his head is reversed. The picture of the woman is to the left of the piece of paper but when we see it from the inside as Melanie walks into the store it's reversed. (00:13:15)

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Continuity mistake: Two seconds after the orange car explodes quite a few people appear who were nowhere nearby a second earlier. (01:25:35)

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Continuity mistake: When the birds start to attack again Mitch starts to run out of the restaurant and the old drunk at the bar is asleep. In the next shot of Mitch at the door he's suddenly awake. (01:24:40)

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Continuity mistake: As Melanie places the card for Cathy on the bird cage one bird appears on the lower perch that wasn't there before. In the next shot it disappears again. (00:22:30)

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