During filming, Santa Barbara County Deputy District Attorney Ronald J. Zonen provided copies of virtually every document in his file on the real life case and served as an unpaid consultant to the film.
Ben Foster risked his sight for the movie by adding glaucoma drops to his eyes for much of the shoot to dilate his pupils, making him appear to be high. He'd hide in the bushes at night and cover his eyes between takes to keep the lights from shining into them. He would also talk to Nick Cassavetes with his eyes closed.
Almost at the end of the film you can hear 'Say Goodbye Hollywood' by Eminem, which is a actual reference to the real life Johnny Truelove (Jesse James Hollywood)
The film is set in 1999, but several background vehicles are newer than that, including a 2001 Volvo V70, 2005 Chrysler Town and Country, 2001 GMC Yukon Denali, and 2003 Toyota Sequoia.
Frankie Ballenbacher: [to Johnny]
Let's just grease the kid. That it's taken care of and we're not running around here like a bunch of fuckin' Chinamen!
In the end, when the audience is told what happend to the people involved and who went to prison for what, how much of this is accurate and how many things are made up?
A
Most of it is accurate. Go to the source link to find out.Source: http://www.crimelibrary.com/notorious_murders/celebrity/jesse_james_hollywoo/8.html
Q
Is this based on a book?
A
No. The film is a fictionalization of the real life case of Jesse James Hollywood who was convicted of orchestrating the kidnapping of the brother of a former friend who owed money to Jesse and subsequent murder of said kidnapped brother.