The Box
Starring Cameron Diaz, James Marsden, Frank Langella
Written by Richard Kelly, based on the short story by Richard Matheson
Directed by Richard Kelly
Plot: A couple's life is turned upside down when they decide to press a button in a mysterious box that will grant them one million dollars, but will result in the death of someone they don't know.

"A complete mind-f*ck in true Twilight Zone, Richard Matheson, and Richard Kelly fashion."