Mel Gibson's first film as a director in ten years is "Hacksaw Ridge," the true story of Desmond Doss, a medic in WWII who showed extraordinary courage and devotion, returning over and over again to rescue 75 wounded men under enemy fire in a battle in Okinawa. I spoke to Gibson, and to Vince Vaughn and Luke Bracey, who play soldiers in the film.
The movie's battle scenes are intentionally brutal. "I...