Nolan used a mixture of IMAX cameras and regular 65mm cameras to shoot his previous film, Oppenheimer. However, subsequently the director challenged the company to make its cameras lighter and quieter. Rich Gelfond, IMAX CEO, explained, "Chris called me up and said, 'If you can figure out how to solve the problems, I will make [The Odyssey] 100 percent in IMAX.' And that's what we're doing. He forced us to rethink that side of our business, our film recorders, our film cameras."