I was a big fan of the 1966 book in junior high school, and when they made a movie of it (in 1968) I watched it too. I'd forgotten the soundtrack was by
Ravi Shankar so when I saw that I had to pick up a DVD of the movie.
I have weeded down my book collection several times. This last time in preparation for considerable downsizing in our living arrangement I gave away a good 2/3 or 3/4 of my remaining books.
"Flowers for Algernon" by Daniel Keyes was still on my shelf. I shall have to re-read it after the movie.