One of my favorites
One of my favorite documentaries I've recently watched is Alive Inside. Social Worker Dan Cohen founded Music and Memory and works to reconnect elderly people with their memories by playing their favorite music to them from their past. Have a look at the trailer to get a better idea of what the film is about.
The film work is touching; music seems to be such an impactful, important part of our lives that anyone who loves music, is interested in learning sciences, or enjoys documentaries will enjoy this movie.