Red Cliff was released as one 148-minute movie internationally, but as two separate movies (Part I and Part II) in Asia. Since your file says "Red Cliff II," you need the subtitle for the second part of the original Asian release , not the condensed international version.
Search for "Red Cliff" or "Chi bi: Jue zhan tian xia." Look for entries that mention the 1080p BluRay x264 release. subtitle Red.Cliff.II.2009.1080p.BluRay.x264.AA...
Rename the subtitle file to match your movie file exactly (e.g., Red.Cliff.II.2009.1080p.BluRay.x264.AA.srt ). Keep them in the same folder. Red Cliff was released as one 148-minute movie
To ensure the text matches the audio timing, look for subtitles specifically tagged with "BluRay" and "x264." Popular databases include: subtitle Red.Cliff.II.2009.1080p.BluRay.x264.AA...