Ben Stiller and Christine Taylor's Son Looks All Grown Up at Gala Appearance (Exclusive)

Ben Stiller and Christine Taylor chat with ET at the Project ALS 25th Anniversary Gala Celebration at Jazz at Lincoln Center, of which they are co-hosts. Ben shares why the organization is so important to him and the couple jokes about who's the better host. The pair’s son, Quinlin, joined his parents in a rare family outing.