The discussion centers on experiences with immersive film formats like OMNIMAX and IMAX, particularly focusing on nature and science documentaries. Participants express admiration for films like "Coral Reef" and the stunning visuals of locations such as the Grand Canyon. While both formats offer impressive experiences, OMNIMAX is highlighted for its dome design that enhances realism, creating a more immersive viewing experience that can even induce vertigo. The technical differences are noted, with OMNIMAX using multiple projectors for a 360-degree view, while IMAX features large flat screens. Some users prefer IMAX for its simplicity and lack of distracting grid patterns, while others emphasize the unique appeal of OMNIMAX films, especially those related to space and underwater exploration. Overall, the conversation reflects a shared enthusiasm for these cinematic experiences, with recommendations for specific films to watch.