"Does the documentary have closed captions or subtitles in other languages?"

Yes. To turn on captions or translate the documentary into another language:

1. Click the CC icon in the top right of the video player to turn on closed captions.
2. To translate into another language, click the gear icon just to the right of the CC icon.
3. Under Captions, select Auto-translate and choose the language you want.

This is helpful for anyone who has difficulty understanding spoken English, and the documentary can be shared with anyone in any country, since this information is valid wherever you live.