The theatrical release of 300 was presented in a widescreen 2.39:1 aspect ratio (letterboxed on standard screens). This release removes those black bars, revealing the full frame of the image as it was captured on camera, filling the entire 16:9 screen. While Snyder’s vision relies heavily on the cinematic width of the theatrical ratio, the Open Matte version provides a fascinating "alternate look" at the film.
The movie was finished at a 2K digital intermediate (DI). Native 4K releases of 300 are upscales, not true 4K scans. Worse, the 4K HDR versions often apply excessive DNR (Digital Noise Reduction) and edge sharpening, which ruins the film’s signature gritty, grainy texture. 300 2006 open matte 1080p webdl x265 hevc 1 best