Chicago -2002- -1080p Bluray X265 Hevc 10bit Aa... !!exclusive!! 〈CERTIFIED〉

You can legally obtain Chicago on Blu-ray, then use open-source software like MakeMKV to rip it, and HandBrake to encode it yourself into x265 10bit. HandBrake has excellent presets for 10bit HEVC. That way you get the exact same quality, support the filmmakers, and learn the process.