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Continuity mistake: In the scene with the policeman, Melanie suggests that she should stay for the night. Look closely at the mantle above the fireplace to in the right of the picture there is a jar with something sticking out of it. In the previous shot this jar is empty. (00:55:55 - 00:57:45)

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Continuity mistake: The gravel walkways and driveways in "The Birds" are immaculately raked and maintained as seen in many shots. When Lydia pulls up to the house after finding Mr. Faucet's body, there's a tire mark in the exact same spot on the gravel from a previous take. (01:01:20)

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Continuity mistake: Mitch walks out of Annie's house and his shirt gets dirtier between shots. It's cleaner by the time they get inside Melanie's car. (01:32:30)

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Continuity mistake: Mitch runs up and opens Annie's door in order to get Cathy from the house. The door is not wide open when they walk away. When Mitch walks back and puts his coat over Annie's body even though no one went near it, the door has been opened as far as possible and is now flush with the wall behind it on the right. (01:31:30)

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Continuity mistake: Mitch picks up a perfectly polished oval stone from Annie's garden. In the next shot as he gets ready to throw it at the crows on the roof, it changes into a jagged rock half the size. (01:31:10)

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Continuity mistake: After Melanie saves the little girl in the blue dress from the gull they run past the table with the birthday cake and punch on and almost get to the door. In the next shot they run past the table again. (00:52:55)

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Continuity mistake: After finding Annie's dead body on her porch, Mitch finds a stone to throw at the crows up on the roof. As he reaches for the stone there's nothing on his left, but in the next shot a bush with stones around it appears. It disappears again in the next shot. (01:31:10)

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Continuity mistake: As Mitch and Melanie walk past the Bodega Bay School we get a good look at the mud caked all over both his shoes. It's there for the whole scene except in the close-up when he picks up the rock, where his shoes are immaculate. (01:29:40)

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Continuity mistake: When we first see Annie's dead body we also see the well groomed and raked gravel of her front walkway with not a pebble out of place. One shot later as Mitch runs up to her we see the impressions of his feet appearing in the gravel from a previous take. (01:30:20)

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Continuity mistake: As they look across the bay at Mitch's house, the store manager changes position between shots. He moves closer to Melanie as he asks her if she wants him to order a boat for her. (00:14:10)

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Continuity mistake: The signature on the card that Melanie signs to Cathy in the close-up on the hood of the car is different when she leaves it leaning on the birdcage at Mitch's house. The "Y" at the end of her name is different on the two envelopes. (00:18:55)

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Continuity mistake: After talking to Mitch on the phone, as Melanie sits behind Annie's desk there are two pens on top of the sheets of paper to the left of the pencil holder that were not there before. Neither Annie or Melanie touched a pen or pencil in this scene. (00:46:40)

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Continuity mistake: After Mitch closes the shutters, the chair from the desk pushed further away to the left of where Lydia and Cathy are sitting and they haven't moved it or moved from where they were sitting. (01:44:05)

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Continuity mistake: The front of and a lock of hair below Annie's right ear is combed differently between shots as she smokes a cigarette with Melanie and tells her that Mitch's sister's name is Cathy. (00:17:00)

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Continuity mistake: As they all run into the house to get away from the birds the redheaded boy in the grey-blue suit disappears. He runs across the lawn at the same time as Annie and the two little girls with her and should arrive at exactly the same time but we never see him again. Mitch even looks around in his direction to see if there are any children still outside before he enters the house. The boy just disappears from this scene and is not in the last shot of everyone inside the house either. (00:53:00)

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Continuity mistake: When everyone begins running down the hill Melanie is in the middle and Annie is in the back. We're watching continuous action but several seconds later Melanie jumps to the rear without ever being passed by Annie. (01:13:45)

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Continuity mistake: At the party the tablecloth is blowing under the table in the long shot as everyone runs toward the house. In the next shot as they enter the house it's not blowing and there is no wind at all. (00:53:00)

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Continuity mistake: Inside the restaurant Melanie talks to her father on the phone at the bar. The phone's chord changes position between shots. At first it's resting on her sleeve then in the next shot it's on her forearm. (01:15:45)

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Continuity mistake: As Melanie opens the door to the bedroom there is no light except her flashlight but you can see two distinct reflections in the door knob, one of the flashlight and one of the studio light behind her. (01:47:15)

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Continuity mistake: During the party as they walk up Mitch's hill Melanie has two swizzle sticks in her glass that switch to her left hand as they get to the top of hill. (00:48:10)

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