I watched this today, and I absolutely loved it. I think what I liked the most, other than all the great footage of Caroll as Big Bird, as well as Jim Henson, Richard Hunt, and Joan Ganz Cooney speaking about him at (what I assume was) a birthday party for Caroll; but what really stuck out at me was the relationship between Caroll and his wife. They have such a beautiful relationship together, and it was so neat to see how she traveled with him all over the place.
There were, of course, many places that made me sad. Some to name are when they spoke of Caroll's childhood, his father, the passing of Jim, among others. But what I think really hit me was when they discussed how little Big Bird is truly on the show now. Not because of just that--but it made me realize just how much older Caroll has gotten, and I get concerned for what may happen. I know things will happen, but a part of me is not ready for that.
This is a very good documentary, and it really gives me a better glimpse at what goes on behind the scenes.