Christopher Tolkien speaks about "The Silmarillion"

If you've never seen it before a very revealing film (just over 9 minutes) of Christopher Tolkien speaking about his father's sub-creation.

From the documentary "J.R.R.T.: A Film Portrait of J.R.R. Tolkien" (1996)

http://www.youtube.com/watch?v=0J1JSLzja7E