By Eric Ditzian

Jesse Eisenberg and Joseph Mazzello in "The Social Network"
Photo: Sony Pictures
Jesse Eisenberg doesn't have a lot of free time at the moment. He's holed up in Grand Rapids, Michigan, filming the action/comedy "30 Minutes or Less," and when he's not on set — as happened on a recent Sunday evening — he's often writing term papers as part of the undergraduate anthropology degree he's pursuing.















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