Trivia: Annette Bening plays Naomi Watts' mother in the movie, even though in real life she's only 10 years older than Watts.
Trivia: "The Box" was based on a short horror story entitled "Button Button" by prolific and legendary sci-fi author Richard Matheson. Matheson's original story was first published in a 1970 issue of Playboy Magazine. He adapted his own story for the screen in a 1985 episode of the new "Twilight Zone" TV series, but it was significantly rewritten after he submitted it. Matheson was so angered by the Twilight Zone rewrite that he refused to allow his real name in the episode credits and instead used his pseudonym, "Logan Swanson."
Trivia: Though sometimes billed as a sequel or remake to the movie "Bad Lieutenant," the films are not connected in any way beyond featuring a corrupt law-enforcement officer as the lead character. Director Werner Herzog tried to get the title changed because he didn't like the idea of it being compared to the original film since it was completely unrelated... and also because he hadn't even seen the original film.