The changes may be appreciated by comparing the systematic synopses at the end of this article with the classification adopted in 1877 in the 9th edition of the Ency.
With the advent of the Internet, you can now find movie plot synopses all over the place.
Once you're sure it's indeed movie plot synopses you're looking for, and not reviews, they can be found all over the Internet.
You can find single synopses written in stray places all over the web, or find sites that have collections of synopses of movies plots.
The following is a sampling of some of the sites that offer up a library of sorts, filled with movie synopses.