Matt Damon's Cousin is Training BFF Ben Affleck for 'Batman vs. Superman: Dawn of Justice'!

Matt Damon is all sweaty after getting in a good workout at his gym on Wednesday (June 4) in Beverly Hills, Calif. The 43-year-old actor’s first cousin Jamie Damon has just been hired by Ben Affleck to train him up for his role as Batman in Batman vs. Superman: Dawn of Justice, THR reports. Jamie,