To get the actual .srt text file for this specific release, you can check these common subtitle databases:
If the audio and text are slightly out of sync when you play the file, most media players (like VLC) allow you to adjust subtitle delay using the G and H keys.
If you are looking for the subtitle content or a file to download, File Details : The Mountain Between Us (2017) Format : BRRip (Blu-ray Rip) encoded with the XviD codec.
OpenSubtitles: Search for the 2017 title and filter by your preferred language.
Subscene: Look for the version that matches "BRRip" or "XviD" for the best timing sync.
: This is a survival story about two strangers who survive a plane crash in the High Uintas Wilderness and must trek across miles of subzero waste to find help. Where to Find Subtitles
YIFY Subtitles: Often carries well-synced files for BRRip releases.