Over the weekend, actor Ben Affleck spoke to “Extra’s” AJ Calloway at the NYC premiere of his film "Batman v Superman: Dawn of Justice.” Affleck had to beef up for the role of Bruce Wayne. He shared, "I put on a lot of weight for this movie. I put on the good kind of weight. I put on about a pound and a half of muscle a month, which sounds like nothing, but that's hard to do.” AJ also caught up with Ben's co-stars Henry Cavill and Gal Gadot. "Batman v Superman: Dawn of Justice” hits theaters Friday.