So how was the movie?

I assume everyone saw the documentary about the song "Amazing Grace" today. How was it? Did you enjoy the music? How well did you understand the story of the song? Maybe I should ask what you understood and what you had questions about. What did you like about the documentary and what did you not like so much?

Here's a link to the words and melody of the hymn. Here's the Wikipedia article about it. And finally, here is the urban legend page from snopes.com about it.