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Continuity mistake: As Lauren Bacall walks over to the window we see the sunlight coming directly in. Earlier in the scene when she was standing on the other side of the room the sunlight was coming in from a different direction shining on the opposite wall. (00:11:15)

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Continuity mistake: In the Hollywood Public Library Marlowe Looks in the book "Famous First Editions" and has it opened to chapter XIV. In the next shot the book is opened to a different page. (00:13:20)

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Visible crew/equipment: When Lauren Bacall and Marlowe speak at their first meeting she says, "Now look Mr. Marlowe my father's not well" and the camera's shadow can be seen on Marlowe's back. (00:11:00)

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Continuity mistake: Marlowe walks in on Lauren Bacall as she's pouring a drink, and she's standing to the left of the fireplace. In the next shot she's moved over about a foot to her right and is standing in front of the left side of the fireplace. (00:10:00)

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Continuity mistake: As Marlowe walks into Geiger's bookstore his handkerchief is sticking out of his jacket pocket. He never touches it again but the next time we see it it's neatly tucked into the pocket of his jacket. (00:13:50)

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Continuity mistake: As she speaks to Marlowe, Dorothy Malone Asks, "Is there something I can do for you?" and she reverses the pencil she's holding between shots. This happens again about a minute later. (00:15:35 - 00:16:05)

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Continuity mistake: In the Acme Book Shop, Marlowe says to Dorothy Malone, "I got my car…" and her hands go from being at her sides to out in front of her playing with the pencil between shots. (00:17:10)

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Continuity mistake: At Arthur Gwynn Geiger's house, Marlowe finds the camera hidden in a hollow sculpture and in the close up it's in direct light. In the next shot it's covered by Marlowe's shadow. (00:22:45)

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Continuity mistake: When Lauren Bacall first meets Marlowe she's pouring a drink and the level of the liquid in the glass goes above her left index finger. In the next shot she's still pouring the drink and the liquid goes above her left index finger a second time. (00:10:00)

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Continuity mistake: After Marlowe leaves Geiger's bookstore he walks across the street to the Acme Book Shop and a man is walking in just before him. In the next shot two women are walking out. (00:15:20)

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Continuity mistake: As Marlowe goes up to the front desk the librarian asks him, "Did you find what you wanted?" and another librarian is helping someone else. In the next shot that other librarian is not helping anyone and has her back towards the camera. (00:13:30)

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Continuity mistake: Lauren Bacall asks, "How did you like dad?" and we see Marlowe standing by the liquor tray. The liquor on the tray has moved since she poured her drink, most noticeable is the top of the seltzer bottle that has rotated 45 degrees without anyone going near it. (00:10:00 - 00:11:15)

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Continuity mistake: When he first meets Gen. Sternwood the ashtray on the table to the left of Marlowe is moved between shots. (00:03:15)

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Continuity mistake: Marlowe says, "Geiger says these are gambling debts?" and Gen. Sternwood goes from holding his left hand in his right to holding his right hand in his left between shots. (00:08:30)

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Continuity mistake: While speaking to Gen. Sternwood Marlowe picks up the card that says, "Arthur Gwynn Geiger" and he holds it in the air. In the next close-up shot it's in the pile with the rest of the papers. (00:06:40)

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Continuity mistake: The top of the seltzer bottle on the liquor tray is facing away from Marlowe than in the next shot as he says, "but then she tried to sit in my lap when I was standing up" it's now facing towards him. (00:07:20)

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Continuity mistake: The papers in Marlowe's hand are reversed between shots. At first the folded sheet is on the right then when Gen. Sternwood says, "If I did she'd just suck her thumb and look coy" the folded sheet is on the left. (00:07:10)

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Continuity mistake: When he first meets Gen. Sternwood, Marlowe takes off his coat and a book of matches appears behind his glass of Brandy on the table to the right of him. Later it disappears again. (00:03:30 - 00:06:10)

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Continuity mistake: After she puts them down, the letters on the table that Carmen was looking at are rearranged when Norris the Sternwood's butler calls Marlowe in to see Gen. Sternwood. (00:02:30)

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Continuity mistake: The papers Marlowe is holding in the close-up are different than the pile of papers that Gen. Sternwood handed him. In the close-up all the papers are flat but in the long shot one is folded. (00:06:50)

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