Ben Affleck on How Jennifer Lopez Helped Him for ‘Air’ and His Son Rocking His 80s Looks (Exclusive)

Ben Affleck chats with ET's Kevin Frazier at the red carpet premiere of his new film, 'Air,' in Los Angeles. Ben, who portrays Nike co-founder and former CEO, Phil Knight, opens up about the fashion help he received from his wife, Jennifer Lopez, for the 80s inspired flick. Plus, he reacts to Matt Damon's transformation into former Nike executive, Sonny Vaccaro. 'Air' is in theaters April 5.