While "downloading" a movie often involves compressed audio to save file size, the IMAX-mastered physical releases (like the 4K UHD Blu-ray) feature a massive, uncompressed track. Hans Zimmer’s organ-heavy score was designed to rattle floorboards, and the high-bitrate versions ensure the audio doesn't "peak" or lose detail during the film's loudest moments. Where to find the IMAX version?