When Jennifer Lopez's character (Grace McKenna) flashes back at the end of the film we see lots of photographs of her as a child. These photographs are actually photos from Jennifer Lopez's private collections of herself as a child.
The script for the film, based on an earlier treatment by author John Ridley, was adapted by Oliver Stone and Richard Rutowski. However, because WGA rules state that a writer must contribute at least sixty percent of new material in order to justify an on-screen credit, their names were ultimately left off the picture.
In the scene where the blind vet asks Bobby to buy him a pop, the theater across the street displays the poster for the Charles Bronson film The Stone Killer (1973). The second poster displayed at the theater in that scene is still unidentified.
Throughout the film, close-up shots of the ring Nick Nolte's character wears are shown. It bears a Freemasonic insignia and most likely was used in the film for the purposes of being anti-Masonic, given the character's weak moral fiber and downright repugnant behavior. Oliver Stone is a notorious conspiracy theorist and many conspiracy theories revolve around Freemasonry being at the core of such conspiracy theories.