With the new thriller Source Code in theaters now, Jake Gyllenhaal sheds his wide-eyed wonder years and casts himself as the next leading man. Jake Gyllenhaal proves to be a man of his word, unfortunately. Yesterday he promised me a “really f**ing hard climb,” and that’s what he’s engineering now. Jake Gyllenhaal is something of a cardio monster. You might not guess this at first glance. At 6 feet and about 180 pounds, the 30-year-old is visibly in shape, but he doesn’t sport the typical road-biker, my-body-fat-is-lower-than-your-mortgage-rate frame. For his past two action roles, as the title character in Prince […]