In the public sex scene, all the non-actors' reactions to the scene were real.
In the restaurant scene, when Jason Statham was explaining to Amy Smart what he did, her hiccups were genuine.
When the Google Earth satellite views zoom-in they show the real locations where the scenes were actually shot.
Jason Statham initially had reservations about accepting the role of Chev Chelios mainly due to him not believing himself to be particularly funny. In response to this, directors Brian Taylor and Mark Neveldine told him to simply play it straight and let the dialogue be funny.
Chester Bennington: The man in the hospital pharmacy that tells Chev about the nasal spray - one of the lead singers in Linkin Park.
Sam Witwer: as one of Carlito's henchmen in the final shootout, would go on to star as Starkiller in Star Wars: The Force Unleashed (2008) and its sequel. In the film, Chev admits to Eve that he lied about being a video game programmer. Jason Statham had provided the voice of Shrike in the video game Red Faction II (2002) and the voice of Sergeant Waters in the video game Call of Duty (2003).