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Continuity mistake: As Melanie takes the tea into Lydia's room, the tea pot changes positions between shots. First the handle is to Melanie's right, then as she walks into the room it's facing her. (01:02:35)

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Continuity mistake: When Mitch asks Melanie how you can tell if birds are molting, the canaries behind her are perching above her head. In the next shot of both of them together, they're still right up against the cage but the perch is lower. (00:05:20)

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Continuity mistake: As Mitch and Melanie walk down the hill to the party the sun is behind them casting the shadows of the children towards the house. Three shots later in the close-up of Cathy the sun is in the opposite direction coming from across the bay. (00:52:00)

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Continuity mistake: We see Melanie run to help the girl in the blue dress twice. The first time she starts out from the middle of the yard and almost gets to her. The second time she starts from further back near the lawn chairs. (00:52:35)

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Continuity mistake: As Melanie plays the piano, the shadow of the picture of her father on the wall gets longer and shorter between shots. (00:36:25)

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Continuity mistake: The position of Melanie's car has changed from when she first parked it in front of Annie's house. At first the rear wheels are adjacent to the steps, but later they've been moved back slightly so the front seat is adjacent to the steps for Annie to lean in when they speak. (00:18:10)

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Continuity mistake: As Melanie approaches the boat keeper her pocketbook is hanging around her wrist. In the next shot as she speaks to him the pocketbook is in the crook of her arm. (00:20:00)

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Continuity mistake: When Melanie explains that she can't go to the party because she has to go back to San Francisco, Cathy's right hand changes position between shots. (00:36:40)

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Continuity mistake: The doorknob on the door behind Lydia disappears between shots as she brings the cake out. (00:51:55)

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Continuity mistake: When Annie opens her door and sees the dead bird on the porch we see a good shot of the railing and support beams that go up to the roof. Two shots later they disappear. (00:47:25)

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Continuity mistake: As the children start running down the hill away from the school the road is wet. In the next shot of the same spot it's dry. (01:13:30)

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Continuity mistake: When Melanie says to the store manager, "The little girl's name," a bunch of items appear to the right of the store manager, one named "Magic Puzzle," that weren't there in the previous shot. (00:14:35)

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Continuity mistake: The stuff inside Mitch's barn is lit differently and moved between shots. (00:22:05 - 00:22:40)

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Continuity mistake: The gas station fire in front of the pumps becomes much worse between shots as Melanie watches it from the phone booth. (01:26:20)

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Continuity mistake: After Mitch and Melanie walk past the door that says, "Out to Lunch," look at the numbers on the front of the boat behind them you'll see that they change between shots. (00:26:15)

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Continuity mistake: As Melanie pulls into Bodega Bay she makes a sharp right turn in bright sunlight but the shadow of her head never appears where it should be on the seat behind her. (00:12:00)

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Continuity mistake: As they talk in Lydia's bedroom the inside part of the left window curtain is rearranged while Melanie is standing by the clock. (01:06:20)

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Continuity mistake: As they talk in her bedroom and Lydia says, "Do I sound very foolish to you?", the pillows behind her are propped up differently between shots. (01:03:15)

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Continuity mistake: As the birds are flying around the house we see in the close-up that the fireplace has three logs. The right half of the log in the middle moves up onto the log in the front between shots. (00:55:05)

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Continuity mistake: As they go up to the restaurant to get help Melanie says, "I had a booster before I went abroad last May" and the background changes abruptly between shots. (00:26:15)

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