 Glatzer and Westmoreland started researching the screenplay in 2003, earning the trust of Florence's daughter, Beverly, and the friendship of author Tedd Thomey and Flynn's chauffeur in his final years, Ronnie Shedlo.They wrote the first draft of the screenplay in 2007 but it was not until 2011, and the attachment of Kevin Kline, that things started to move forward.Production took place in Atlanta, GA in 2013.