Troy.2004.720p.bluray.x264.[yts.ag] | Subtitle

Release groups like YTS often use specific frame rates (usually 23.976 fps). A subtitle for a "Director's Cut" or a different "WEB-DL" source will likely be out of sync.

To understand the "text" of this filename is to understand the language of the digital underground: subtitle Troy.2004.720p.BluRay.x264.[YTS.AG]

If you are looking for the actual for this specific release: Release groups like YTS often use specific frame