You need to set your UI language to get access to more subtitles in Netflix. My wife is Thai and Thai subtitles only show when the UI is set to Thai. Prime is

You need to set your UI language to get access to more subtitles in Netflix. My wife is Thai and Thai subtitles only show when the UI is set to Thai. Prime is worse. I actually watched the movie The Courier with English subtitles on and the subtitles disappeared for all of the Russian dialogue.