Show subtitles or captions in QuickTime Player on Mac
If a movie has subtitles or captions, QuickTime Player can display them while the movie is playing. If the movie doesn’t have subtitles, you won’t see an option to view them.
Note: The closed captioning option is only available if captions are embedded using the CEA-608 format.
In the QuickTime Player app on your Mac, do any of the following: