Joan Rivers, a Lifetime in the Business

Published: June 14, 2010, 9:30 p.m.

Joan Rivers may be best known for her off-color humor, working the red carpet, and her love of plastic surgery.  But in the new documentary, Joan Rivers: A Piece of Work, filmmakers Annie Sundberg and Ricki Stern reveal a woman who is an amazingly resilient industry pro, so committed to work that she won't let up even at the age of 77.