L.A. Confidential is a 1997 neo-noir film based on James Ellroy's 1990 novel of the same title, the third book in his L.A. Quartet series. Both the book and the film tell the story of a group of LAPD officers in the year 1953, and the intersection of police corruption and Hollywood celebrity. The title refers to the 1950s scandal magazineConfidential, portrayed in the film as Hush-Hush. The film adaptation was produced and directed by Curtis Hanson and co-written by Hanson and Brian Helgeland.
http://en.wikipedia.org/wiki/L.A._Confidential_(film)