The 41-year-old, who plays real-life Sudan hero Sam Childers in the movie, recently opened up about his emotional connection to the upcoming film.
Gerard told the Los Angeles Times: 'This happened to me a lot when we were filming. I would just be overcome. I feel every emotion. I haven't talked much about this film in a while, and I did the other day, and I just started crying. I cried for about five minutes.'
Sam managed to transform his crime-filled life after finding God and founded an orphanage in war-torn Sudan back in 1998.
Butler added: 'Did I go around stabbing people and shooting people? No. Did I end up in Africa building an orphanage? No. But I did have a massive transformation in my life where I sorted everything out.'