The Gospel of Lou

• 2003 action film
• Plot: Lou is a world class boxer, but he doesn't get the respect he deserves. He stutters violently unless he's starting trouble and confronting people with his ideas. When a head injury robs him of his licence to box, Lou "debugs his brain" in order to transform from a violent, homophobic, stuttering trouble-maker into an inspirational speaker.
• IMDb link