'Street Kings' is apparently based on a James Ellroy novel, 'The Night Watchman'. I was surprised when I saw his name in the writing credits last night. I have heard of this well-known writer of crime fiction previously but I must admit that I am unfamiliar with his work. 'LA Confidential' was apparently based on a book of his as well.The depiction of the LA underworld in the Street Kings and the extent of corruption in the LAPD were of interest as well. Heh.