My boyfriend and I went to see the documentary "Being Elmo: A Puppeteer's Journey" last night at the Brattle Theater in Cambridge. It is about Kevin Clash (the voice of Elmo), his quest to be a puppeteer, his career, puppet/muppet creation, Jim Henson, and Elmo's evolution.
It was FANTASTIC. It is only an hour and fifteen minutes- a very interesting and wonderful story!
The bonus is that the puppet making and puppeteering insight is fascinating (-especially if you are an art teacher or fiber artist....)