Subtitles - Auto-download subtitles for movie files

This might be too much to ask for, but can this be modified into a VLC plugin?

Could be very useful for non-native English speakers. Reminds me of Fleex, an app built of of Popcorn to "improve your English by watching TV shows and movies."

Reminds me of https://www.shooter.cn/ a subtitle meta search engine(which was very popular in China).