Automatically download subtitles in VLC player
You can write VideoLAN VLC player's extensions in LUA programming language. Extensions are in Videolan\VLC directory lua\extensions.
This is a modified extension to automatically download subtitles.
IMPORTANT:
Only works up to version 2.0.8. Due to undocumented changes in VLC 2.1.x, the subtitle loading function is broken (forced relative path).
http://www.videolan.org/vlc/releases/2.0.8.html
Will add more languages upon request. Currently this extension is intended for personal use.
Main article: http://dev.kafol.net/2011/07/automatically-download-subtitles-in-vlc.html