Joseph Gordon-Levitt Big Muscles Pictures

Joseph Gordon-Levitt showed up on the Hollywood set of his latest film, Don Jon's Addiction, yesterday. He ran through a scene and showed off his bulked-up frame in a tight blue t-shirt. JGL's diving into another project while his forthcoming feature The Dark Knight Rises preps for a July 20 release. Earlier this week fans got a glimpse of a new poster showing Gotham burning to the ground around Batman. Hot superheros Christian Bale and JGL are just two of the reasons we're excited to see the final chapter in the Batman franchise, and if you're still not convinced, take a peek at the latest trailer for The Dark Knight Rises.