After celebrated careers , legendary dancers Marge Champion and Donald Saddler became friends while performing together in the Broadway Show Follies (2001) . When the show closed, they decided to rent a private studio together where they have been choreographing and rehearsing original dances ever since. They are both 90 years old. KEEP DANCING seamlessly blends 9 decades of archival film and photographs with present day footage to tell a story through dance of the passing of time and the process of aging.