English subtitle tested and verified on release:
Star Trek VI The Undiscovered Country 1991 Director's Cut 2160p UHD Blu-ray Remux HEVC DV TrueHD 7.1-HDT_en.sdh
It can also be used for other releases, just rename it!
After years of war, the Federation and the Klingon empire find themselves on the brink of a peace summit when a Klingon ship is nearly destroyed by an apparent attack from the Enterprise. Both worlds brace for what may be their deadliest encounter.