Matt Damon as Odysseus in Christopher Nolan's 'The Odyssey.' Melinda Sue Gordon/Universal Pictures

Christopher Nolan’s “The Odyssey,” a new adaptation of Homer’s epic tale of Odysseus’ perilous journey home after the Trojan War, is already being described as a case study in post-traumatic stress disorder.

But even more so, actor Matt Damon’s tortured and broken portrayal of Odysseus offers a look into what psychologists call moral injury.

Originally published on theconversation.com, part of the BLOX Digital Content Exchange.