Macon Blair used the experience of having his apartment broken into and laptop stolen, plus a lack of police follow-up, as some of the inspiration for this story.
Elijah Wood met his girlfriend on this movie, Mette-Marie Kongsved, who would become the mother of his child.
Tony wants Kevin to stop barking by yelling "Anjing!". That means "Quiet!" in Mandarin Chinese. Coincidentally "Anjing" means "Dog" in Bahasa Indonesia.
While Tony is on the computer, he says, 'You're so sly, but so am I.' These very same words were used in the 1986 film Manhunter by Michael Mann.