Which of these L.A. films is set in the early 1950s?

L.A. Confidential is a 1997 American neo-noir crime film directed, produced and co-written by Curtis Hanson. The screenplay by Hanson and Brian Helgeland is loosely based on James Ellroy's 1990 novel of the same name, the third book in his L.A. Quartet series. Like the book, the film tells the story of a group of LAPD officers in 1953, and the intersection of police corruption and Hollywood celebrity. The title refers to the 1950s scandal magazine Confidential, portrayed in the film as Hush-Hush.

In early 1950s Los Angeles, Sergeant Edmund "Ed" Exley, son of the legendary LAPD detective Preston Exley, is determined to live up to his father's reputation. His intelligence, insistence on following regulations, and cold demeanor contribute to his isolation from other officers. He exacerbates this resentment by volunteering to testify in the Bloody Christmas case against his fellow officers in exchange for a promotion to Detective Lieutenant. This goes against the advice of Captain Dudley Smith, who states that a detective should be willing to shoot a guilty man in the back for the greater good. Exley's ambition is fueled by the murder of his father, killed by an unknown assailant, whom Exley nicknames "Rollo Tomasi".