Continuity: As Kasper Gutman talks to Spade about the Maltese Falcon, we see the bottle of liquor on the table go from half full to three quarters full in two shots without anyone going near it.

Continuity: Miles Archer walks in and throws his hat on his desk as Sam Spade speaks to Brigid O'Shaughnessy in the first scene of the movie. The hat is leaning against a letter holder on Miles' desk, later it's in the letter holder and no one went near it.

Continuity: Kasper Gutman drugs Spade and as they get up from the couch after speaking about the black bird we see a vase on table with roses in it. The roses have been rearranged and the items on top of the table have moved throughout the scene even though no one has gone near it.

Continuity: Joel Cairo is knocked cold by Spade's upper cut and as he's unconscious Spade goes through his pockets. He takes his wallet out first and places it on the table behind him but by the time his hand reaches the table in the next shot the wallet becomes a watch.

Visible crew/equipment: Before Spade walks into Kasper Gutman's hotel room there's one chair against the far wall. When he leaves the room there are two.

Continuity: Miles Archer walks in as Sam Spade speaks to Brigid O'Shaughnessy and he sits down. At the right side of his desk a coat hanger with a hat on it appears out of nowhere next to the window.

Continuity: Spade is a gracious host and offers Detectives Dundy and Polhaus a drink from a bottle that appears between shots on his night stand.

Continuity: Capt. Jacobi brings the Maltese Falcon to Spade's office and drops it at his feet. The Falcon is tied up with string with the center having one strand wrapped around it. Later when Spade picks it up the center has two strands of string tied together around it.

Continuity: Spade shows up at Brigid O'Shaughnessy's apartment as she's unpacking. The two slips that are draped over the open suitcase in the center of the room move as the scene progresses even though no one goes near them.

Continuity: As Kasper Gutman yammers on about the Maltese Falcon, we see Spade finish his drink. He never goes near the bottle but two shots later there's a small amount of liquid back in his glass. In the next shot it's empty again.

Continuity: The pillow on the hotel room couch moves between shots as Gutman pours Spade a drink.

Continuity: At the end of the movie Kasper Gutman's bowler is sitting flush on the table to left of him. No one goes near it but later in a close-up it rests at an angle on top of some other clothing.

Continuity: When Spade talks to his lawyer, Effie brings in Joel Cairo's calling card. Spade's packet of rolling papers are right next to his phone in some shots and not in others, even though he doesn't touch it.

Continuity: Miles Archer is shot and Sam Spade stands at the wood fence on top of the hill looking down at the body. When Miles is shot he holds onto the fencepost and there is no railing on the left or on the right, but when Spade stands there railing is on the left side.

Continuity: Spade walks into his office and Effie tells him that Kasper Gutman called and that Brigid O'Shaughnessy is in his private office. When he first walks in there's nothing by the water cooler on their left but several shots later he walks out to talk to Effie again and now there's a coat rack with several coats on it moved up next to the water cooler.

Continuity: As Spade speaks to Brigid O'Shaughnessy in the first scene of the movie, just about everything on his desk moves between shots without being touched.

Continuity: Spade returns to his office the next day to find Iva Archer waiting for him. The lamp in the center of Effie's desk is removed between shots as he turns to look at her.

Continuity: Joel Cairo plays with his umbrella as he speaks to Spade about the possibility of him finding the Maltese Falcon. When he says, "I am prepared to pay, on behalf of the figure's rightful owner, the sum of $5,000 for its recovery," the handle of the umbrella changes positions between shots.

Continuity: At the end of the movie everyone meets up at Spade's apartment. When he walks in he throws his hat down on the table with the phone on it in front of the window. The next time we see it up close the hat is reversed, everything on the table has been rearranged and his alarm clock appears next to the phone. Later the hat moves without anyone going near it.

Visible crew/equipment: As Spade gives the guns back to Wilmer Cook in Kasper Gutman's hotel room an equipment shadow appears on Cook as they proceed to the couch.