Matt Damon made several lifestyle changes while filming "The Odyssey." Variety via Getty Images Matt Damon plays the lead role of Odysseus in Christopher Nolan's new film, "The Odyssey." On Amy Poehler's podcast, "Good Hang," Damon described filming the adaptation of Homer's epic. He said his role was physically demanding and required changes in diet, sleep, and overall health. Matt Damon says preparing for his demanding role in Christopher Nolan's "The Odyssey" required "a complete lifestyle