Two Newbie Questions

Hi

I am current using Kodi v17.1 release candidate under Windows 10 on a pc.

1. I have movies, some TV series and my home videos in separate folders.
However when starting Kodi, the movie database updates everything.
Is there a way of preventing the database update from including the Home Movies and the TV Series?

2. Using Opensubtitles, I had to download an english.srt for a movie that was mostly English, but had a lot of critical audio in French.
The first .srt I downloaded produced English subtitles when English was spoken, but did nothing when French was spoken.
I eventually found a .srt that also added subtitles for the French audio (but still added subtitles for the English).
How can I download/find .srts that will just show English subtitles when other than English is spoken?