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Continuity mistake: Marlowe talks to Norris the Sternwood's butler at the front door and as he gets ready to leave he turns up his collar. In the next shot he turns up his collar again as he walks away (1945 Version on DVD). (00:27:45)

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Continuity mistake: Marlowe goes into Geiger's house again to snoop around and he finds that Geiger's dead body has been removed. As he stands over the spot where the body was his shadow falls right on the bloodspot. In the next shot of him kneeling down and touching the blood stained carpet there's no shadow. (00:28:00)

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Continuity mistake: After Marlowe plops Carmen Sternwood onto her bed the lamp (on the left) moves over about two feet to the left in the next shot. (00:25:45)

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Continuity mistake: Marlowe drives Carmen Sternwood home and when we first see her in the car she's facing the passenger side door. In the next shot we see her reflection in the rear view mirror and she's now facing Marlowe (1945 Version on DVD). (00:27:05)

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Continuity mistake: As Marlowe goes threw Arthur Gwynn Geiger's strong box, the horse on his desk moves closer to the phone between shots. (00:24:40)

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Revealing mistake: As they stand talking in Carmen Sternwood's bedroom a very interesting studio reflection occurs when Lauren Bacall says, "she never remembers anyway". The reflection of her dark lipstick as she says this line can be seen moving on Bogart's right cheek. (00:26:25)

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Visible crew/equipment: The shadow of a boom mike or some other large piece of equipment can be seen moving on the window shade above Marlowe's head as he prepares to leave Arthur Gwynn Geiger's house. (00:24:45)

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Continuity mistake: Marlowe looks at Arthur Gwynn Geiger's diary and his right thumb is covering the page he's reading. In the next shot his hand is moved to the right and not covering the page anymore. (00:24:15)

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Continuity mistake: To get his car, Marlowe walks back to Arthur Gwynn Geiger's house after bringing Carmen Sternwood home. No one has touched it but his car has moved closer to the for sale sign on the house across the street from Geiger's, where he parked it before. (00:19:35 - 00:27:20)

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Continuity mistake: After he brings her home from Geiger's house, Marlowe plops Carmen Sternwood onto her bed and both her hands are above her head. In the next shot her right hand is at her side. (00:25:45)

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Continuity mistake: The mat on Arthur Gwynn Geiger's desk is flush with the edge of the desk when Marlowe snoops around in it. As he thumbs threw the codebook he doesn't go near the mat but in the next shot it's slid over the side of the desk. (00:24:10)

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Continuity mistake: As Marlowe prepares to leave Geiger's house the Buddha statue along with three other articles on the table in front of the fireplace move further apart throughout the scene even though no one goes near them. (00:23:25 - 00:24:45)

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Continuity mistake: The front door of the Sternwood's is in the first shot of the movie as Marlowe rings the door bell. The front of the door has just one indentation near the knocker, later we see the front door again as Marlowe brings Carmen home and now it has two indentations. (00:01:15 - 00:25:15)

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Continuity mistake: When she first meets Marlowe, Lauren Bacall pours her drink and the flask on the liquor table moves to the left in front of the seltzer bottle between shots. (00:10:00)

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Continuity mistake: In the Hollywood Public Library Marlowe writes "Chevalier Audubon" on the top of a piece of paper and starts writing something else on the second line. In the next shot he's writing on the top of the piece of paper again. (00:13:15)

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Visible crew/equipment: When the light hits Dorothy Malone's glasses in the Acme Book Shop the flat reflection reveals they are flat-lensed prop glasses. (00:15:35)

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Continuity mistake: Marlowe says to Dorothy Malone in the Acme Book Shop, " I was just wondering if you have to?" and she puts the paper cup in her right hand down twice. (00:17:50)

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Continuity mistake: Marlowe tails Arthur Gwynn Geiger up to his house and we see the passenger seat and nothing is on it. In the next close-up shot Marlowe's coat is draped over the seat. (00:19:35)

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Continuity mistake: When she first meets Marlowe, Lauren Bacall's hair is combed between shots as the left side is different in her close ups when she says to Marlowe, "I doubt if even that would help". (00:10:25)

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Continuity mistake: As Marlowe leaves Geiger's bookstore a policeman is walking by outside. In the next shot the policeman is gone. (00:14:55)

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