Subtitle Flatliners.2017.720p.bluray.x264.[yts.ag] -

: Press the G key to make subtitles appear later (delay).

If the subtitles are slightly ahead or behind the audio, you can fix them in real-time using VLC Media Player:

: For most media players to load the subtitle automatically, rename the downloaded .srt file to match the video file exactly (e.g., Flatliners.2017.720p.BluRay.x264.[YTS.AG].srt ) and keep them in the same folder. Adjusting Sync in VLC Media Player

If you want to permanently fix the timing of an out-of-sync file, you can use online tools like the Happy Scribe Subtitle Shifter or software like Subtitle Edit to shift the entire timeline and save a new, corrected file.