If you have a file that is missing subtitles or has out-of-sync text, reputable third-party sites are your best resource.
Many fans look for specific subtitle timestamps for iconic or "meme-able" lines from the film: 14 Deep Quotes from Harry Potter: The Half-Blood Prince 22 Dec 2023 — harry potter and the halfblood prince subtitles
✨ “But I am the chosen one.” SMACK (Ginny hits Harry with a newspaper) Subtitles: [THWACK] If you have a file that is missing