This is a film about the development and the history of the Cry Baby wah wah pedal. It's about a hour long but is broken up into 4 sections. It's interesting and entertaining and has a great and funny section on the making of the song "Shaft". Loaded with interviews of the people that invented, developed, and pioneered the use of one of the most ubiquitous and identifiable gadgets of rock, soul, jazz, and blues.
http://www.crybabydoc.com/index.html
