For standalone .srt files, look for versions specifically tagged with "1080p," or "H264" to ensure the timing matches your video file. Highly recommended sites include:

If you are watching the film on a streaming platform, and Tubi offer free (ad-supported) versions that include built-in closed captioning. Watch Jawbreaker (1999) - Free Movies - Tubi Watch Jawbreaker (1999) - Free Movies | Tubi. tubitv.com

: A focused site specifically for English-language subtitle files.