The 1920s drama, based on the Dennis Lehane novel of the same name, follows the saga of Coughlin through his rise to power in Boston, his incarceration and release to start over in Florida. It's in the Sunshine State where the once straight-edged U.S. soldier finds himself caught between two rival gangs and two femme fatales played by Zoe Saldana and Sienna Miller.
"I realized to be free in this life breaking rules meant nothing. You had to be strong enough to make your own," Affleck says as Coughlin in the trailer.
Affleck shared pictures from the set when the movie began shooting in Brunswick, Georgia, in October.