Cinema DTS is not lossless. It is encoded at a bitrate of 882 kbps, certainly below what lossless compression would allow for five channels of highly dynamic audio.
The only way to get that level of quality would be from the Dolby TrueHD on the Bluray release. I'm not at all convinced that this is actually a remix anyway, and it may well be the theatrical mix, or a close derivation thereof.