Have you watched The Unforeseen, the 2007 documentary about the development of Barton Springs?  Directed by Laura Dunn, and produced partially by Robert Redford, it a must see for any Austinite or anyone who loves Austin.  

Redford is personally tied to Austin spending most of his childhood here, even learning to swim in Barton Springs Pool.  If you don’t love documentaries, you should at least enjoy the historical footage of Barton Springs, S. Congress Ave and Circle C.  The movie is shown a couple of times a year at the Alamo Drafthouse, but you can rent it through Netflix and probably Blockbuster.