Although originally shot on , the 4K Ultra HD Blu-ray of Iron Man is sourced from a 2K Digital Intermediate (DI) . This means the 4K presentation is an upscale rather than a native 4K scan of the original negative.
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There are moments in cinematic history that feel less like a release and more like a detonation. On May 2, 2008, a film starring a reformed tabloid headline, a director known for Elf , and a comic book character that wasn't even in the "A-list" pantheon exploded onto screens. That film was Iron Man .
The transfer uses Digital Noise Reduction (DNR) , which smooths out some original film grain. This makes it look cleaner but may bother purists who prefer a more "filmic" texture.