The Maltese Falcon 1941

The Maltese Falcon is a 1941 American film noir in which a San Francisco private detective deals with three unscrupulous adventurers, all seeking a jewel-encrusted falcon statuette. Written and directed by John Huston in his directorial debut, the film was based on the 1930 novel The Maltese Falcon by Dashiell Hammett and is a remake of the 1931 film of the same name. It stars Humphrey Bogart as private investigator Sam Spade, Mary Astor as his femme fatale client, and as villains Peter Lorre and Sydney Greenstreet.
The film premiered in New York City on 3 October, 1941, and was an immediate success, eventually becoming one of the first 25 films selected by the Library of Congress to be included in the National Film Registry as "culturally, historically, or aesthetically significant".
In San Francisco in 1941, private investigators Sam Spade and Miles Archer meet prospective client Ruth Wonderly. She claims to be looking for her missing sister, who ran off from their home in New York and came to the city with a man named Floyd Thursby. Archer agrees to help get her sister back. However, later that night, the police inform Spade that Archer has been killed. Spade tries calling his client at her hotel to discover she has checked out. Back at his apartment, he is grilled by Police Detective Tom Polhaus and Lieutenant Dundy, who tell him that Thursby was murdered the same evening. Dundy suggests that Spade had the opportunity and motive to kill Thursby, who likely killed Archer.
Later that morning, Spade meets Wonderly, now calling herself Brigid O'Shaughnessy, who confesses that her story was made up. However, she convinces Spade to investigate the murders and also reveals that Thursby was her partner. He took advantage of her and probably killed Archer, but she claims to have no idea who killed Thursby. At his office, Spade meets Joel Cairo, who first offers him $5,000 to find a "black figure of a bird". When Spade is skeptical, Cairo pulls a gun on him and searches the room for it. Spade knocks Cairo out and goes through his belongings. When Cairo comes round, he hires Spade.
On his way to visit O'Shaughnessy later that evening, Spade is followed by a young man but manages to evade him. When he tells O'Shaughnessy about Cairo, her nervousness indicates she knows him. He arranges a meeting between the two at his apartment, where Cairo becomes agitated when O'Shaughnessy reveals that the "Fat Man" is in San Francisco. When Spade goes to Cairo's hotel in the morning, he spots Wilmer Cook, the young man who trailed him earlier. Wilmer works for Kasper Gutman, the "Fat Man". In his hotel suite, Gutman relates the history of the Maltese Falcon, then offers Spade his pick of $25,000 for the bird and another $25,000 after its sale, or a quarter of the proceeds from its sale.
Spade passes out because his drink is spiked. Wilmer and Cairo come in from another room and leave with Gutman. On coming round, Spade searches the suite and finds a newspaper etc....