The -CM- and TSK are not movie metadata. They are —signatures left by the encoding group or the uploader.
Since this is a single .mp4 file (not a BluRay folder structure with BDMV streams), it is likely one of the following: Oppenheimer.2023.1080p.BluRay.DDP5.1 -CM- TSK.mp4
At 1080p, you will see fine film grain (Nolan shoots on celluloid, not digitally), the stark black-and-white of the Strauss scenes, and the blinding white-hot detonations with clarity. However, you will not get the variable aspect ratio shifts found on the 4K BluRay (where IMAX scenes expand to fill the entire screen). This 1080p version will likely maintain a constant 2.20:1 or 2.39:1 aspect ratio. The -CM- and TSK are not movie metadata
The perfect release for a cinematic masterpiece. 🎬 is finally available in a stunning 1080p BluRay encode. If you haven't witnessed Christopher Nolan’s epic take on the "Father of the Atomic Bomb," this is the definitive way to watch it at home. 💎 Technical Specs Resolution: 1080p High Definition Source: BluRay Retail However, you will not get the variable aspect