While Warner Bros. officially released a 4K UHD disc of Eyes Wide Shut in late 2020 / early 2021 (depending on region), the real magic happened on private trackers and P2P networks. The 2021 MKV releases weren't just rips of old DVDs. They were high-bitrate encodes sourced directly from the 4K master.
There is a famous scene where Bill Harford walks down a dark New York street lit only by Christmas lights and a red neon cross. Download a sample of the 2021 MKV. Play the scene at 00:28:15. In a good encode, you should see no macroblocking in the deep blacks. Stream the scene on Netflix or HBO Max, and you will see digital artifacts. The 2021 MKV Remux shows the grain, the halation, and the fear in Cruise’s eyes. eyes wide shut mkv 2021
Once you have acquired or created your own MKV from the 2021 source, playback requires the right tools. Avoid Windows Media Player or QuickTime. While Warner Bros