The character Zulay Velez grandmother pronounces her name slightly differently than the rest of the cast at the suggestion of writer Kevin Misher. Misher thought it would indicate a closer relationship between Zulay and her grandmother as family/friends often have pet names for each other.
In this film, Channing Tatum's character states he is from Birmingham, Alabama, and Terrence Howard's character states he is from Chicago, Illinois. In real life, Tatum was born in Cullman, Alabama, and Howard was born in Chicago, Illinois.
Five actors who are in this film previously worked with Channing Tatum in "A Guide Line To Recognizing Your Saints" (2006).
Second movie with Terrence Howard to feature a montage to the song "Trouble Man" by Marvin Gaye. The first being Four Brothers.