I want to buy it
I am not sure at this time. It was available on DVD at one point. This is the website that I know of:
http://www.laits.utexas.edu/klw/
This is the last good email address:
jug@mail.utexas.edu
You can apparently watch it via Undergroundfilm.com:
http://www.undergroundfilm.com/films/detail.tcl?wid=1000061