Because of the specific "BRRip" and "720p" tags, you should look for .srt files that mention these in the filename to ensure the timing (sync) matches your video file. Recommended Subtitle Sites
You can download the subtitles for for the BRRip 720p release from several dedicated subtitle repositories. subtitle TheHangoverPart2.brrip.720p.2011
: A straightforward alternative for movie-specific files like The Hangover Part II at MovieSubtitles.org . Quick Tip for Syncing Because of the specific "BRRip" and "720p" tags,