Christopher Nolan asked IMAX to build him a new camera. They did. Then he and Matt Damon spent four months filming The Odyssey on the open ocean, on the largest modern Viking longship in the world, with no green screens at all. The shoot ran 91 days, from late February to August 2025. Seven countries: Morocco, Greece, Italy, Iceland, Scotland, Western Sahara, and Malta. Aside from one indoor studio in Los Angeles, every shot was filmed on real ground. In Italy, the cast and crew climbed 900 feet up a mountain every morning. Imagine walking up a 60-story building before breakfast. In Iceland, they filmed the underworld scenes by lantern light while rain came at them sideways. The four months at sea actually happened at sea. Damon and the actors playing his crew sailed on a real ship called the Draken Harald Hårfagre, used here as a Greek warship. Nolan called the experience "primal." He said the cast and crew were exhausted in a way he had never seen before. The cameras were the other big problem. IMAX cameras have always been too loud to record clean dialogue, which is why directors mostly save them for big action scenes. Nolan asked IMAX to fix this. They engineered a new soundproof case for the camera, a kind of quiet jacket, that lets the lens get within a foot of an actor's face while they whisper and still pick up clean audio. The new cameras also came out lighter and about 30% quieter than the old ones. To prove it worked, the lead cameraman Hoyte van Hoytema filmed a tight close-up of a child reciting a David Bowie song, "Sound and Vision." Nolan watched the test and called it "electrifying." Damon went all-in on the role. He dropped to 167 pounds on a strict no-gluten diet. He grew a real beard for a full year because Nolan refused to allow a fake one. The crew built a full-scale wooden Trojan Horse and shot the attack scene at an ancient walled town in Morocco called Aït Benhaddou. Nolan himself climbed inside the horse with the cast and his cameraman to get the shot. Across the whole shoot they used 2 million feet of film. That comes out to around 380 miles of it, longer than the drive from Los Angeles to San Francisco. At about $1.50 a foot, they spent roughly $3 million just on the film itself. The full budget was $250 million, the biggest of Nolan's career. They wrapped nine days ahead of schedule. Tickets went on sale on July 17, 2025, exactly one year before the movie's release. That had never been done before in cinema history. Half of the 22 US theaters offering IMAX 70mm sold out within 12 hours, bringing in around $1.5 million in a single morning. Nolan called the shoot "an absolute nightmare to film, but in all the right ways." He did not destroy a single IMAX camera. He has wrecked several over his career.