The catalog language is a starting detail
Original language identifies the production. It does not promise a matching dub or subtitle track on every viewing offer. After choosing a service, inspect that edition's Audio and Subtitles menu. Country, platform and release can affect the available tracks.
Choose the information you need
Dialogue subtitles and closed captions can differ. Captions may include sound effects and speaker cues as well as spoken words. For a film where quiet sounds or off-screen dialogue are important, those extra details can help.
If the player offers customisation, adjust text size and contrast at your normal viewing distance. An outline or background can make captions easier to read over bright footage. Try a short scene before committing to the setting for the whole film.
If the track is out of time
Reselect the track and resume playback. A subtitle-delay control can correct a consistent offset where it is provided. If the mismatch grows during the film, the issue may involve the edition rather than a simple delay. Try another supplied track or use the viewing service's support.