Pennsylvania lured the production with the following incentives to keep the budget fiscally responsible: a 20% transferable tax credit, no state sales tax, and free use of state-owned property.
Filmed in 2004.
One of the Sicilian names is Provenzano which is the name that a real life undercover officer used to bring down mafia hit man Richard 'Ice Man' Kuklinski.
While the film is set in Philadelphia, it was filmed in Pittsburgh.
In the summer of 2005 Dennis Hopper praised Brad Renfro to the News Sentinel's Terry Morrow. Hopper said Renfro was "terrific" and compared the substance abuse issues of his own youth with those of Renfro's: "It's a waste of prime time ... If you're in a haze all the time, you can't do much work."