'Triple 9' trivia and fun facts

At the beginning, Nick Cave would score the music for the film but later, Cave left the project and Atticus Ross came on board to compose the score for the film.

Atticus Ross compose the music for the film along with his wife Claudia Sarne, brother Leopold Ross and Bobby Krlic.

In August 2013, Cate Blanchett and Christoph Waltz were in talks to join the cast but later dropped out and instead Kate Winslet and Woody Harrelson came on board.

Shia LaBeouf was initially attached to star in the film but later left the project and was replaced by Charlie Hunnam. However, in December 2013, Hunnam also left the project and was replaced by Casey Affleck.

Cook's script of the movie was included in Black List scripts of 2010.