If you haven't seen Nightcrawler—and I highly recommend that you do—the only thing you know about Jake Gyllenhaal is that he lost a ton of weight to play a major league weirdo. Well, it didn't take long for him to pack the pounds back on, but it looks like they all went toward muscle as he doesn't appear to have an ounce of body fat to spare!
This pic is from his latest film, Southpaw, which is due in theaters next year, and it shows Jake looking... beefy. That's really the only word for it. I'm impressed by his dedication to his craft, and after seeing Nightcrawler, I'm once again becoming impressed by his acting ability.