Shiv Panikker on Instagram: "Christian Bale’s Transformation | Behind-The-Scenes Bale only had six months in between “The Machinist” and the start of production on Christopher Nolan’s “Batman Begins” to bulk up for his role as Bruce Wayne/Batman. The actor ended up putting on 100 pounds. “I would do splits — every day focusing on a different muscle group,” Bale told Train Magazine. “I would do three sets of 10 to eight, depending on what I was working on.” “I stuffed myself after The Machinist.