While 4K is the current standard, a high-bitrate 1080p Blu-ray rip (MKV) offers a pristine viewing experience.
Most "4K" versions of this film are upscales. Therefore, a properly encoded file, when encoded with a high bitrate (typically 8,000 to 15,000 kbps using x264 or x265), will look 99% as good as a 4K version on a standard 55-inch screen.