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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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Continuity mistake: Lydia is holding her glove in her right hand and her pocketbook in her left as she walks into Mr. Faucet's room. The pocketbook never switches hands but when she runs out, she drops both of them from her right hand. (01:00:15)

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Continuity mistake: As Melanie runs to Annie, the pile of papers on the left of her desk changes between shots and a blue booklet appears on top. (01:12:00)

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Continuity mistake: Before Melanie runs back into the school to warn them about the birds, the sun was behind the school. Now her shadow on the steps is in the wrong direction, going in front of her. (01:11:45)

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Continuity mistake: As Melanie walks into Annie's apartment we see the front door behind here to the left. Before the door had a shade on top of it, this door is different and doesn't have a shade or a space for it between the curtain and the window. (00:41:10)

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Continuity mistake: As Melanie and Mitch walk past the side of the restaurant look closely at the second and third windows from the right. Now we can see right into the place through these but after they walk into the restaurant look behind the bar all three windows have drawn blinds. (00:26:25)

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