The film began as an adaptation of David Mamet's friend William J. Caunitz's 1986 novel "Suspects". However, the more Mamet wrote, the more his story diverged from the source material until, with Caunitz's blessing, Mamet left the source book behind entirely, until ultimately the script became an original screenplay.
Actress Rebecca Pidgeon, who plays Miss Klein, and writer-director David Mamet, are married. The two tied the knot on 22 September 1991. Homicide (1991) was the couple's first cinema movie collaboration together.
Debut cinema movie as an actor of Tony Mamet who is the half-brother of director-playwright-screenwriter David Mamet. Nearly all of Tony Mamet's acting filmography is in filmed productions associated with David Mamet.