The younger brother of co-writer and director Kimberly Peirce served in the military after 9/11. She IM'd him regularly from the day he landed in Iraq and learned what his everyday life was like. This gave her a window into the young men signing up, their training and aspirations, their experiences in Iraq, and what happened when they came home.
The title refers to a provision in all military service contracts that says a service member can be involuntarily extended beyond their discharge (from active duty) date, and at times beyond their final discharge from service date, according to the needs of the service.
Joseph Gordon-Levitt and Rob Brown all appeared in the 2013 comedy-drama Don Jon. Tatum and Brown also worked together in 2005's sports drama Coach Carter. Tatum and Gordon-Levitt reunited in the 2009 action film G.I. Joe: The Rise of Cobra.
Joseph Gordon Levitt and Channing Tatum were in three films together: Havoc (2005), Stop-Loss (2008) and G.I. Joe: The Rise of Cobra (2009). They were also in the the TV series Comrade Detective (2017) together, and the short Morgan and Destiny's Eleventeenth Date: The Zeppelin Zoo (2010).