“Harry Potter and the Half-Blood Prince” (film, 2009) subtitles serve three primary purposes: accessibility for deaf and hard-of-hearing viewers, language support for non-native speakers, and searchability/indexing for content platforms. Subtitles include dialog transcription, speaker identification when needed, non-speech information (music, sound effects), and occasional localization/adaptation for cultural or linguistic differences.
While official subtitles for Harry Potter and the Half-Blood Prince harry potter and the halfblood prince subtitles