Matt Damon Prepared For His 'Oppenheimer' Role By Talking to Ben Affleck's Marine Grandfather

Ben Affleck had a little involvement in helping Matt Damon prepare for his role in Oppenheimer - through his grandfather. Matt, 52, revealed that he turned to Ben‘s grandfather, who was a Marine, in order to prep for his role as General Leslie Groves, Jr., in the Christopher Nolan film. Keep reading to find out [...]