Conversation so far:
What was Harry Nilsson's legacy?
Nilsson is the subject of a 2006 documentary, Who Is Harry Nilsson? produced by David Leaf and John Schienfeld.
Are there any other interesting aspects about Harry Nilsson's legacy besides the 2006 documentary?
In 1964, Nilsson worked with Phil Spector, writing three songs with him.

Question: anything else he did that was big?
Self-contained rewrite: Anything else Harry Nilsson did that was big besides working with Phil Spector?