Just saw Festival Express again last night. One of my personal favorites. I love that scene on the train with Rick Danko, Jerry Garcia and Janis Joplin. I will never get tired of that. And Buddy Guy kills it with his performance.
Also recently have watched Gimme Shelter, Stop Making Sense, and a cool documentary called "Before The Music Dies", its about the deteriorated pop music culture. Highly recommended.
What should be next on my list? I am open to pretty much anything.