@Dawn-Brockman-0 You should be able to do this with a few find and replace.
You make copies in a new folders as you said you do, let’s say “D:\MoviesFolder” You can use “Find in Files” with Regex to remove all the rows that are not year/genre/stars. make sure the “Directory” is the correct directory so you don’t break files from other places, don’t know if there is undo for this operation. I never tried to run it on mkv/mp4, but I assume you already have files that look like the xml you provided and we use them.b09b9845-a2f2-49b6-a1f5-ac76a1b6d425-image.png If you want to remove the tags, you can run another find&replace with:
Find: .<(year|genre|stars)>(.?)</\1>.*\R?
Replace: \2\n
You will now have only number and names so you will have to deduce yourself what is a year, what is a genre, and what is a star, but as long as Ryan Reynolds is not a genre yet you should be fine.